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1459 lines
47 KiB
1459 lines
47 KiB
<?php
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/** PHPExcel root directory */
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if (!defined('PHPEXCEL_ROOT')) {
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/**
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* @ignore
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*/
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define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
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require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
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}
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/**
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* PHPExcel_Calculation_MathTrig
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*
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* Copyright (c) 2006 - 2015 PHPExcel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* @category PHPExcel
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* @package PHPExcel_Calculation
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* @copyright Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version ##VERSION##, ##DATE##
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*/
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class PHPExcel_Calculation_MathTrig
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{
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//
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// Private method to return an array of the factors of the input value
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//
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private static function factors($value)
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{
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$startVal = floor(sqrt($value));
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$factorArray = array();
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for ($i = $startVal; $i > 1; --$i) {
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if (($value % $i) == 0) {
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$factorArray = array_merge($factorArray, self::factors($value / $i));
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$factorArray = array_merge($factorArray, self::factors($i));
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if ($i <= sqrt($value)) {
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break;
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}
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}
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}
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if (!empty($factorArray)) {
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rsort($factorArray);
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return $factorArray;
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} else {
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return array((integer) $value);
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}
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}
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private static function romanCut($num, $n)
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{
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return ($num - ($num % $n ) ) / $n;
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}
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/**
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* ATAN2
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*
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* This function calculates the arc tangent of the two variables x and y. It is similar to
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* calculating the arc tangent of y ÷ x, except that the signs of both arguments are used
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* to determine the quadrant of the result.
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* The arctangent is the angle from the x-axis to a line containing the origin (0, 0) and a
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* point with coordinates (xCoordinate, yCoordinate). The angle is given in radians between
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* -pi and pi, excluding -pi.
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*
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* Note that the Excel ATAN2() function accepts its arguments in the reverse order to the standard
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* PHP atan2() function, so we need to reverse them here before calling the PHP atan() function.
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*
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* Excel Function:
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* ATAN2(xCoordinate,yCoordinate)
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param float $xCoordinate The x-coordinate of the point.
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* @param float $yCoordinate The y-coordinate of the point.
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* @return float The inverse tangent of the specified x- and y-coordinates.
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*/
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public static function ATAN2($xCoordinate = null, $yCoordinate = null)
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{
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$xCoordinate = PHPExcel_Calculation_Functions::flattenSingleValue($xCoordinate);
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$yCoordinate = PHPExcel_Calculation_Functions::flattenSingleValue($yCoordinate);
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$xCoordinate = ($xCoordinate !== null) ? $xCoordinate : 0.0;
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$yCoordinate = ($yCoordinate !== null) ? $yCoordinate : 0.0;
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if (((is_numeric($xCoordinate)) || (is_bool($xCoordinate))) &&
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((is_numeric($yCoordinate))) || (is_bool($yCoordinate))) {
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$xCoordinate = (float) $xCoordinate;
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$yCoordinate = (float) $yCoordinate;
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if (($xCoordinate == 0) && ($yCoordinate == 0)) {
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return PHPExcel_Calculation_Functions::DIV0();
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}
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return atan2($yCoordinate, $xCoordinate);
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* CEILING
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*
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* Returns number rounded up, away from zero, to the nearest multiple of significance.
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* For example, if you want to avoid using pennies in your prices and your product is
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* priced at $4.42, use the formula =CEILING(4.42,0.05) to round prices up to the
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* nearest nickel.
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*
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* Excel Function:
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* CEILING(number[,significance])
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param float $number The number you want to round.
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* @param float $significance The multiple to which you want to round.
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* @return float Rounded Number
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*/
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public static function CEILING($number, $significance = null)
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{
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$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
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$significance = PHPExcel_Calculation_Functions::flattenSingleValue($significance);
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if ((is_null($significance)) &&
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(PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC)) {
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$significance = $number / abs($number);
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}
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if ((is_numeric($number)) && (is_numeric($significance))) {
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if (($number == 0.0 ) || ($significance == 0.0)) {
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return 0.0;
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} elseif (self::SIGN($number) == self::SIGN($significance)) {
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return ceil($number / $significance) * $significance;
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} else {
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return PHPExcel_Calculation_Functions::NaN();
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}
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* COMBIN
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*
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* Returns the number of combinations for a given number of items. Use COMBIN to
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* determine the total possible number of groups for a given number of items.
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*
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* Excel Function:
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* COMBIN(numObjs,numInSet)
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param int $numObjs Number of different objects
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* @param int $numInSet Number of objects in each combination
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* @return int Number of combinations
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*/
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public static function COMBIN($numObjs, $numInSet)
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{
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$numObjs = PHPExcel_Calculation_Functions::flattenSingleValue($numObjs);
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$numInSet = PHPExcel_Calculation_Functions::flattenSingleValue($numInSet);
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if ((is_numeric($numObjs)) && (is_numeric($numInSet))) {
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if ($numObjs < $numInSet) {
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return PHPExcel_Calculation_Functions::NaN();
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} elseif ($numInSet < 0) {
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return PHPExcel_Calculation_Functions::NaN();
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}
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return round(self::FACT($numObjs) / self::FACT($numObjs - $numInSet)) / self::FACT($numInSet);
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* EVEN
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*
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* Returns number rounded up to the nearest even integer.
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* You can use this function for processing items that come in twos. For example,
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* a packing crate accepts rows of one or two items. The crate is full when
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* the number of items, rounded up to the nearest two, matches the crate's
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* capacity.
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*
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* Excel Function:
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* EVEN(number)
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param float $number Number to round
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* @return int Rounded Number
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*/
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public static function EVEN($number)
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{
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$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
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if (is_null($number)) {
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return 0;
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} elseif (is_bool($number)) {
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$number = (int) $number;
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}
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if (is_numeric($number)) {
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$significance = 2 * self::SIGN($number);
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return (int) self::CEILING($number, $significance);
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* FACT
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*
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* Returns the factorial of a number.
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* The factorial of a number is equal to 1*2*3*...* number.
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*
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* Excel Function:
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* FACT(factVal)
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param float $factVal Factorial Value
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* @return int Factorial
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*/
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public static function FACT($factVal)
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{
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$factVal = PHPExcel_Calculation_Functions::flattenSingleValue($factVal);
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if (is_numeric($factVal)) {
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if ($factVal < 0) {
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return PHPExcel_Calculation_Functions::NaN();
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}
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$factLoop = floor($factVal);
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if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
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if ($factVal > $factLoop) {
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return PHPExcel_Calculation_Functions::NaN();
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}
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}
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$factorial = 1;
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while ($factLoop > 1) {
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$factorial *= $factLoop--;
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}
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return $factorial ;
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* FACTDOUBLE
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*
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* Returns the double factorial of a number.
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*
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* Excel Function:
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* FACTDOUBLE(factVal)
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param float $factVal Factorial Value
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* @return int Double Factorial
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*/
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public static function FACTDOUBLE($factVal)
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{
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$factLoop = PHPExcel_Calculation_Functions::flattenSingleValue($factVal);
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if (is_numeric($factLoop)) {
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$factLoop = floor($factLoop);
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if ($factVal < 0) {
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return PHPExcel_Calculation_Functions::NaN();
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}
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$factorial = 1;
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while ($factLoop > 1) {
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$factorial *= $factLoop--;
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--$factLoop;
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}
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return $factorial ;
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* FLOOR
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*
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* Rounds number down, toward zero, to the nearest multiple of significance.
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*
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* Excel Function:
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* FLOOR(number[,significance])
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param float $number Number to round
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* @param float $significance Significance
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* @return float Rounded Number
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*/
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public static function FLOOR($number, $significance = null)
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{
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$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
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$significance = PHPExcel_Calculation_Functions::flattenSingleValue($significance);
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if ((is_null($significance)) &&
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(PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC)) {
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$significance = $number/abs($number);
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}
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if ((is_numeric($number)) && (is_numeric($significance))) {
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if ($significance == 0.0) {
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return PHPExcel_Calculation_Functions::DIV0();
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} elseif ($number == 0.0) {
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return 0.0;
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} elseif (self::SIGN($number) == self::SIGN($significance)) {
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return floor($number / $significance) * $significance;
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} else {
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return PHPExcel_Calculation_Functions::NaN();
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}
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}
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return PHPExcel_Calculation_Functions::VALUE();
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}
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/**
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* GCD
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*
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* Returns the greatest common divisor of a series of numbers.
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* The greatest common divisor is the largest integer that divides both
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* number1 and number2 without a remainder.
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*
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* Excel Function:
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* GCD(number1[,number2[, ...]])
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
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* @param mixed $arg,... Data values
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* @return integer Greatest Common Divisor
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*/
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public static function GCD()
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{
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$returnValue = 1;
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$allValuesFactors = array();
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// Loop through arguments
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foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $value) {
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if (!is_numeric($value)) {
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return PHPExcel_Calculation_Functions::VALUE();
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} elseif ($value == 0) {
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continue;
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} elseif ($value < 0) {
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return PHPExcel_Calculation_Functions::NaN();
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}
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$myFactors = self::factors($value);
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$myCountedFactors = array_count_values($myFactors);
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$allValuesFactors[] = $myCountedFactors;
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}
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$allValuesCount = count($allValuesFactors);
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if ($allValuesCount == 0) {
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return 0;
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}
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$mergedArray = $allValuesFactors[0];
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for ($i=1; $i < $allValuesCount; ++$i) {
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$mergedArray = array_intersect_key($mergedArray, $allValuesFactors[$i]);
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}
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$mergedArrayValues = count($mergedArray);
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if ($mergedArrayValues == 0) {
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return $returnValue;
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} elseif ($mergedArrayValues > 1) {
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foreach ($mergedArray as $mergedKey => $mergedValue) {
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foreach ($allValuesFactors as $highestPowerTest) {
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foreach ($highestPowerTest as $testKey => $testValue) {
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if (($testKey == $mergedKey) && ($testValue < $mergedValue)) {
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$mergedArray[$mergedKey] = $testValue;
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$mergedValue = $testValue;
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}
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}
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}
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}
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$returnValue = 1;
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foreach ($mergedArray as $key => $value) {
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$returnValue *= pow($key, $value);
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}
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return $returnValue;
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} else {
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$keys = array_keys($mergedArray);
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$key = $keys[0];
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$value = $mergedArray[$key];
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foreach ($allValuesFactors as $testValue) {
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foreach ($testValue as $mergedKey => $mergedValue) {
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if (($mergedKey == $key) && ($mergedValue < $value)) {
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$value = $mergedValue;
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}
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}
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}
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return pow($key, $value);
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}
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}
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|
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/**
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* INT
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*
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* Casts a floating point value to an integer
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*
|
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* Excel Function:
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* INT(number)
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*
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* @access public
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* @category Mathematical and Trigonometric Functions
|
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* @param float $number Number to cast to an integer
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* @return integer Integer value
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*/
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public static function INT($number)
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{
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$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
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if (is_null($number)) {
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return 0;
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} elseif (is_bool($number)) {
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return (int) $number;
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}
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if (is_numeric($number)) {
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return (int) floor($number);
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|
}
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return PHPExcel_Calculation_Functions::VALUE();
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|
}
|
|
|
|
|
|
/**
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|
* LCM
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|
*
|
|
* Returns the lowest common multiplier of a series of numbers
|
|
* The least common multiple is the smallest positive integer that is a multiple
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|
* of all integer arguments number1, number2, and so on. Use LCM to add fractions
|
|
* with different denominators.
|
|
*
|
|
* Excel Function:
|
|
* LCM(number1[,number2[, ...]])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
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|
* @return int Lowest Common Multiplier
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|
*/
|
|
public static function LCM()
|
|
{
|
|
$returnValue = 1;
|
|
$allPoweredFactors = array();
|
|
// Loop through arguments
|
|
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $value) {
|
|
if (!is_numeric($value)) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
if ($value == 0) {
|
|
return 0;
|
|
} elseif ($value < 0) {
|
|
return PHPExcel_Calculation_Functions::NaN();
|
|
}
|
|
$myFactors = self::factors(floor($value));
|
|
$myCountedFactors = array_count_values($myFactors);
|
|
$myPoweredFactors = array();
|
|
foreach ($myCountedFactors as $myCountedFactor => $myCountedPower) {
|
|
$myPoweredFactors[$myCountedFactor] = pow($myCountedFactor, $myCountedPower);
|
|
}
|
|
foreach ($myPoweredFactors as $myPoweredValue => $myPoweredFactor) {
|
|
if (array_key_exists($myPoweredValue, $allPoweredFactors)) {
|
|
if ($allPoweredFactors[$myPoweredValue] < $myPoweredFactor) {
|
|
$allPoweredFactors[$myPoweredValue] = $myPoweredFactor;
|
|
}
|
|
} else {
|
|
$allPoweredFactors[$myPoweredValue] = $myPoweredFactor;
|
|
}
|
|
}
|
|
}
|
|
foreach ($allPoweredFactors as $allPoweredFactor) {
|
|
$returnValue *= (integer) $allPoweredFactor;
|
|
}
|
|
return $returnValue;
|
|
}
|
|
|
|
|
|
/**
|
|
* LOG_BASE
|
|
*
|
|
* Returns the logarithm of a number to a specified base. The default base is 10.
|
|
*
|
|
* Excel Function:
|
|
* LOG(number[,base])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param float $number The positive real number for which you want the logarithm
|
|
* @param float $base The base of the logarithm. If base is omitted, it is assumed to be 10.
|
|
* @return float
|
|
*/
|
|
public static function LOG_BASE($number = null, $base = 10)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
$base = (is_null($base)) ? 10 : (float) PHPExcel_Calculation_Functions::flattenSingleValue($base);
|
|
|
|
if ((!is_numeric($base)) || (!is_numeric($number))) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
if (($base <= 0) || ($number <= 0)) {
|
|
return PHPExcel_Calculation_Functions::NaN();
|
|
}
|
|
return log($number, $base);
|
|
}
|
|
|
|
|
|
/**
|
|
* MDETERM
|
|
*
|
|
* Returns the matrix determinant of an array.
|
|
*
|
|
* Excel Function:
|
|
* MDETERM(array)
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param array $matrixValues A matrix of values
|
|
* @return float
|
|
*/
|
|
public static function MDETERM($matrixValues)
|
|
{
|
|
$matrixData = array();
|
|
if (!is_array($matrixValues)) {
|
|
$matrixValues = array(array($matrixValues));
|
|
}
|
|
|
|
$row = $maxColumn = 0;
|
|
foreach ($matrixValues as $matrixRow) {
|
|
if (!is_array($matrixRow)) {
|
|
$matrixRow = array($matrixRow);
|
|
}
|
|
$column = 0;
|
|
foreach ($matrixRow as $matrixCell) {
|
|
if ((is_string($matrixCell)) || ($matrixCell === null)) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
$matrixData[$column][$row] = $matrixCell;
|
|
++$column;
|
|
}
|
|
if ($column > $maxColumn) {
|
|
$maxColumn = $column;
|
|
}
|
|
++$row;
|
|
}
|
|
if ($row != $maxColumn) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
try {
|
|
$matrix = new PHPExcel_Shared_JAMA_Matrix($matrixData);
|
|
return $matrix->det();
|
|
} catch (PHPExcel_Exception $ex) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* MINVERSE
|
|
*
|
|
* Returns the inverse matrix for the matrix stored in an array.
|
|
*
|
|
* Excel Function:
|
|
* MINVERSE(array)
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param array $matrixValues A matrix of values
|
|
* @return array
|
|
*/
|
|
public static function MINVERSE($matrixValues)
|
|
{
|
|
$matrixData = array();
|
|
if (!is_array($matrixValues)) {
|
|
$matrixValues = array(array($matrixValues));
|
|
}
|
|
|
|
$row = $maxColumn = 0;
|
|
foreach ($matrixValues as $matrixRow) {
|
|
if (!is_array($matrixRow)) {
|
|
$matrixRow = array($matrixRow);
|
|
}
|
|
$column = 0;
|
|
foreach ($matrixRow as $matrixCell) {
|
|
if ((is_string($matrixCell)) || ($matrixCell === null)) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
$matrixData[$column][$row] = $matrixCell;
|
|
++$column;
|
|
}
|
|
if ($column > $maxColumn) {
|
|
$maxColumn = $column;
|
|
}
|
|
++$row;
|
|
}
|
|
if ($row != $maxColumn) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
try {
|
|
$matrix = new PHPExcel_Shared_JAMA_Matrix($matrixData);
|
|
return $matrix->inverse()->getArray();
|
|
} catch (PHPExcel_Exception $ex) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* MMULT
|
|
*
|
|
* @param array $matrixData1 A matrix of values
|
|
* @param array $matrixData2 A matrix of values
|
|
* @return array
|
|
*/
|
|
public static function MMULT($matrixData1, $matrixData2)
|
|
{
|
|
$matrixAData = $matrixBData = array();
|
|
if (!is_array($matrixData1)) {
|
|
$matrixData1 = array(array($matrixData1));
|
|
}
|
|
if (!is_array($matrixData2)) {
|
|
$matrixData2 = array(array($matrixData2));
|
|
}
|
|
|
|
try {
|
|
$rowA = 0;
|
|
foreach ($matrixData1 as $matrixRow) {
|
|
if (!is_array($matrixRow)) {
|
|
$matrixRow = array($matrixRow);
|
|
}
|
|
$columnA = 0;
|
|
foreach ($matrixRow as $matrixCell) {
|
|
if ((!is_numeric($matrixCell)) || ($matrixCell === null)) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
$matrixAData[$rowA][$columnA] = $matrixCell;
|
|
++$columnA;
|
|
}
|
|
++$rowA;
|
|
}
|
|
$matrixA = new PHPExcel_Shared_JAMA_Matrix($matrixAData);
|
|
$rowB = 0;
|
|
foreach ($matrixData2 as $matrixRow) {
|
|
if (!is_array($matrixRow)) {
|
|
$matrixRow = array($matrixRow);
|
|
}
|
|
$columnB = 0;
|
|
foreach ($matrixRow as $matrixCell) {
|
|
if ((!is_numeric($matrixCell)) || ($matrixCell === null)) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
$matrixBData[$rowB][$columnB] = $matrixCell;
|
|
++$columnB;
|
|
}
|
|
++$rowB;
|
|
}
|
|
$matrixB = new PHPExcel_Shared_JAMA_Matrix($matrixBData);
|
|
|
|
if ($columnA != $rowB) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
return $matrixA->times($matrixB)->getArray();
|
|
} catch (PHPExcel_Exception $ex) {
|
|
var_dump($ex->getMessage());
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* MOD
|
|
*
|
|
* @param int $a Dividend
|
|
* @param int $b Divisor
|
|
* @return int Remainder
|
|
*/
|
|
public static function MOD($a = 1, $b = 1)
|
|
{
|
|
$a = PHPExcel_Calculation_Functions::flattenSingleValue($a);
|
|
$b = PHPExcel_Calculation_Functions::flattenSingleValue($b);
|
|
|
|
if ($b == 0.0) {
|
|
return PHPExcel_Calculation_Functions::DIV0();
|
|
} elseif (($a < 0.0) && ($b > 0.0)) {
|
|
return $b - fmod(abs($a), $b);
|
|
} elseif (($a > 0.0) && ($b < 0.0)) {
|
|
return $b + fmod($a, abs($b));
|
|
}
|
|
|
|
return fmod($a, $b);
|
|
}
|
|
|
|
|
|
/**
|
|
* MROUND
|
|
*
|
|
* Rounds a number to the nearest multiple of a specified value
|
|
*
|
|
* @param float $number Number to round
|
|
* @param int $multiple Multiple to which you want to round $number
|
|
* @return float Rounded Number
|
|
*/
|
|
public static function MROUND($number, $multiple)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
$multiple = PHPExcel_Calculation_Functions::flattenSingleValue($multiple);
|
|
|
|
if ((is_numeric($number)) && (is_numeric($multiple))) {
|
|
if ($multiple == 0) {
|
|
return 0;
|
|
}
|
|
if ((self::SIGN($number)) == (self::SIGN($multiple))) {
|
|
$multiplier = 1 / $multiple;
|
|
return round($number * $multiplier) / $multiplier;
|
|
}
|
|
return PHPExcel_Calculation_Functions::NaN();
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* MULTINOMIAL
|
|
*
|
|
* Returns the ratio of the factorial of a sum of values to the product of factorials.
|
|
*
|
|
* @param array of mixed Data Series
|
|
* @return float
|
|
*/
|
|
public static function MULTINOMIAL()
|
|
{
|
|
$summer = 0;
|
|
$divisor = 1;
|
|
// Loop through arguments
|
|
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
|
|
// Is it a numeric value?
|
|
if (is_numeric($arg)) {
|
|
if ($arg < 1) {
|
|
return PHPExcel_Calculation_Functions::NaN();
|
|
}
|
|
$summer += floor($arg);
|
|
$divisor *= self::FACT($arg);
|
|
} else {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
}
|
|
|
|
// Return
|
|
if ($summer > 0) {
|
|
$summer = self::FACT($summer);
|
|
return $summer / $divisor;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* ODD
|
|
*
|
|
* Returns number rounded up to the nearest odd integer.
|
|
*
|
|
* @param float $number Number to round
|
|
* @return int Rounded Number
|
|
*/
|
|
public static function ODD($number)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
|
|
if (is_null($number)) {
|
|
return 1;
|
|
} elseif (is_bool($number)) {
|
|
return 1;
|
|
} elseif (is_numeric($number)) {
|
|
$significance = self::SIGN($number);
|
|
if ($significance == 0) {
|
|
return 1;
|
|
}
|
|
|
|
$result = self::CEILING($number, $significance);
|
|
if ($result == self::EVEN($result)) {
|
|
$result += $significance;
|
|
}
|
|
|
|
return (int) $result;
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* POWER
|
|
*
|
|
* Computes x raised to the power y.
|
|
*
|
|
* @param float $x
|
|
* @param float $y
|
|
* @return float
|
|
*/
|
|
public static function POWER($x = 0, $y = 2)
|
|
{
|
|
$x = PHPExcel_Calculation_Functions::flattenSingleValue($x);
|
|
$y = PHPExcel_Calculation_Functions::flattenSingleValue($y);
|
|
|
|
// Validate parameters
|
|
if ($x == 0.0 && $y == 0.0) {
|
|
return PHPExcel_Calculation_Functions::NaN();
|
|
} elseif ($x == 0.0 && $y < 0.0) {
|
|
return PHPExcel_Calculation_Functions::DIV0();
|
|
}
|
|
|
|
// Return
|
|
$result = pow($x, $y);
|
|
return (!is_nan($result) && !is_infinite($result)) ? $result : PHPExcel_Calculation_Functions::NaN();
|
|
}
|
|
|
|
|
|
/**
|
|
* PRODUCT
|
|
*
|
|
* PRODUCT returns the product of all the values and cells referenced in the argument list.
|
|
*
|
|
* Excel Function:
|
|
* PRODUCT(value1[,value2[, ...]])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @return float
|
|
*/
|
|
public static function PRODUCT()
|
|
{
|
|
// Return value
|
|
$returnValue = null;
|
|
|
|
// Loop through arguments
|
|
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
|
|
// Is it a numeric value?
|
|
if ((is_numeric($arg)) && (!is_string($arg))) {
|
|
if (is_null($returnValue)) {
|
|
$returnValue = $arg;
|
|
} else {
|
|
$returnValue *= $arg;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return
|
|
if (is_null($returnValue)) {
|
|
return 0;
|
|
}
|
|
return $returnValue;
|
|
}
|
|
|
|
|
|
/**
|
|
* QUOTIENT
|
|
*
|
|
* QUOTIENT function returns the integer portion of a division. Numerator is the divided number
|
|
* and denominator is the divisor.
|
|
*
|
|
* Excel Function:
|
|
* QUOTIENT(value1[,value2[, ...]])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @return float
|
|
*/
|
|
public static function QUOTIENT()
|
|
{
|
|
// Return value
|
|
$returnValue = null;
|
|
|
|
// Loop through arguments
|
|
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
|
|
// Is it a numeric value?
|
|
if ((is_numeric($arg)) && (!is_string($arg))) {
|
|
if (is_null($returnValue)) {
|
|
$returnValue = ($arg == 0) ? 0 : $arg;
|
|
} else {
|
|
if (($returnValue == 0) || ($arg == 0)) {
|
|
$returnValue = 0;
|
|
} else {
|
|
$returnValue /= $arg;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return
|
|
return intval($returnValue);
|
|
}
|
|
|
|
|
|
/**
|
|
* RAND
|
|
*
|
|
* @param int $min Minimal value
|
|
* @param int $max Maximal value
|
|
* @return int Random number
|
|
*/
|
|
public static function RAND($min = 0, $max = 0)
|
|
{
|
|
$min = PHPExcel_Calculation_Functions::flattenSingleValue($min);
|
|
$max = PHPExcel_Calculation_Functions::flattenSingleValue($max);
|
|
|
|
if ($min == 0 && $max == 0) {
|
|
return (mt_rand(0, 10000000)) / 10000000;
|
|
} else {
|
|
return mt_rand($min, $max);
|
|
}
|
|
}
|
|
|
|
|
|
public static function ROMAN($aValue, $style = 0)
|
|
{
|
|
$aValue = PHPExcel_Calculation_Functions::flattenSingleValue($aValue);
|
|
$style = (is_null($style)) ? 0 : (integer) PHPExcel_Calculation_Functions::flattenSingleValue($style);
|
|
if ((!is_numeric($aValue)) || ($aValue < 0) || ($aValue >= 4000)) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
$aValue = (integer) $aValue;
|
|
if ($aValue == 0) {
|
|
return '';
|
|
}
|
|
|
|
$mill = array('', 'M', 'MM', 'MMM', 'MMMM', 'MMMMM');
|
|
$cent = array('', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM');
|
|
$tens = array('', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC');
|
|
$ones = array('', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX');
|
|
|
|
$roman = '';
|
|
while ($aValue > 5999) {
|
|
$roman .= 'M';
|
|
$aValue -= 1000;
|
|
}
|
|
$m = self::romanCut($aValue, 1000);
|
|
$aValue %= 1000;
|
|
$c = self::romanCut($aValue, 100);
|
|
$aValue %= 100;
|
|
$t = self::romanCut($aValue, 10);
|
|
$aValue %= 10;
|
|
|
|
return $roman.$mill[$m].$cent[$c].$tens[$t].$ones[$aValue];
|
|
}
|
|
|
|
|
|
/**
|
|
* ROUNDUP
|
|
*
|
|
* Rounds a number up to a specified number of decimal places
|
|
*
|
|
* @param float $number Number to round
|
|
* @param int $digits Number of digits to which you want to round $number
|
|
* @return float Rounded Number
|
|
*/
|
|
public static function ROUNDUP($number, $digits)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
$digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);
|
|
|
|
if ((is_numeric($number)) && (is_numeric($digits))) {
|
|
$significance = pow(10, (int) $digits);
|
|
if ($number < 0.0) {
|
|
return floor($number * $significance) / $significance;
|
|
} else {
|
|
return ceil($number * $significance) / $significance;
|
|
}
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* ROUNDDOWN
|
|
*
|
|
* Rounds a number down to a specified number of decimal places
|
|
*
|
|
* @param float $number Number to round
|
|
* @param int $digits Number of digits to which you want to round $number
|
|
* @return float Rounded Number
|
|
*/
|
|
public static function ROUNDDOWN($number, $digits)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
$digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);
|
|
|
|
if ((is_numeric($number)) && (is_numeric($digits))) {
|
|
$significance = pow(10, (int) $digits);
|
|
if ($number < 0.0) {
|
|
return ceil($number * $significance) / $significance;
|
|
} else {
|
|
return floor($number * $significance) / $significance;
|
|
}
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* SERIESSUM
|
|
*
|
|
* Returns the sum of a power series
|
|
*
|
|
* @param float $x Input value to the power series
|
|
* @param float $n Initial power to which you want to raise $x
|
|
* @param float $m Step by which to increase $n for each term in the series
|
|
* @param array of mixed Data Series
|
|
* @return float
|
|
*/
|
|
public static function SERIESSUM()
|
|
{
|
|
$returnValue = 0;
|
|
|
|
// Loop through arguments
|
|
$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
|
|
|
|
$x = array_shift($aArgs);
|
|
$n = array_shift($aArgs);
|
|
$m = array_shift($aArgs);
|
|
|
|
if ((is_numeric($x)) && (is_numeric($n)) && (is_numeric($m))) {
|
|
// Calculate
|
|
$i = 0;
|
|
foreach ($aArgs as $arg) {
|
|
// Is it a numeric value?
|
|
if ((is_numeric($arg)) && (!is_string($arg))) {
|
|
$returnValue += $arg * pow($x, $n + ($m * $i++));
|
|
} else {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
}
|
|
return $returnValue;
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* SIGN
|
|
*
|
|
* Determines the sign of a number. Returns 1 if the number is positive, zero (0)
|
|
* if the number is 0, and -1 if the number is negative.
|
|
*
|
|
* @param float $number Number to round
|
|
* @return int sign value
|
|
*/
|
|
public static function SIGN($number)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
|
|
if (is_bool($number)) {
|
|
return (int) $number;
|
|
}
|
|
if (is_numeric($number)) {
|
|
if ($number == 0.0) {
|
|
return 0;
|
|
}
|
|
return $number / abs($number);
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* SQRTPI
|
|
*
|
|
* Returns the square root of (number * pi).
|
|
*
|
|
* @param float $number Number
|
|
* @return float Square Root of Number * Pi
|
|
*/
|
|
public static function SQRTPI($number)
|
|
{
|
|
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
|
|
|
|
if (is_numeric($number)) {
|
|
if ($number < 0) {
|
|
return PHPExcel_Calculation_Functions::NaN();
|
|
}
|
|
return sqrt($number * M_PI) ;
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* SUBTOTAL
|
|
*
|
|
* Returns a subtotal in a list or database.
|
|
*
|
|
* @param int the number 1 to 11 that specifies which function to
|
|
* use in calculating subtotals within a list.
|
|
* @param array of mixed Data Series
|
|
* @return float
|
|
*/
|
|
public static function SUBTOTAL()
|
|
{
|
|
$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
|
|
|
|
// Calculate
|
|
$subtotal = array_shift($aArgs);
|
|
|
|
if ((is_numeric($subtotal)) && (!is_string($subtotal))) {
|
|
switch ($subtotal) {
|
|
case 1:
|
|
return PHPExcel_Calculation_Statistical::AVERAGE($aArgs);
|
|
case 2:
|
|
return PHPExcel_Calculation_Statistical::COUNT($aArgs);
|
|
case 3:
|
|
return PHPExcel_Calculation_Statistical::COUNTA($aArgs);
|
|
case 4:
|
|
return PHPExcel_Calculation_Statistical::MAX($aArgs);
|
|
case 5:
|
|
return PHPExcel_Calculation_Statistical::MIN($aArgs);
|
|
case 6:
|
|
return self::PRODUCT($aArgs);
|
|
case 7:
|
|
return PHPExcel_Calculation_Statistical::STDEV($aArgs);
|
|
case 8:
|
|
return PHPExcel_Calculation_Statistical::STDEVP($aArgs);
|
|
case 9:
|
|
return self::SUM($aArgs);
|
|
case 10:
|
|
return PHPExcel_Calculation_Statistical::VARFunc($aArgs);
|
|
case 11:
|
|
return PHPExcel_Calculation_Statistical::VARP($aArgs);
|
|
}
|
|
}
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
|
|
/**
|
|
* SUM
|
|
*
|
|
* SUM computes the sum of all the values and cells referenced in the argument list.
|
|
*
|
|
* Excel Function:
|
|
* SUM(value1[,value2[, ...]])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @return float
|
|
*/
|
|
public static function SUM()
|
|
{
|
|
$returnValue = 0;
|
|
|
|
// Loop through the arguments
|
|
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
|
|
// Is it a numeric value?
|
|
if ((is_numeric($arg)) && (!is_string($arg))) {
|
|
$returnValue += $arg;
|
|
}
|
|
}
|
|
|
|
return $returnValue;
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMIF
|
|
*
|
|
* Counts the number of cells that contain numbers within the list of arguments
|
|
*
|
|
* Excel Function:
|
|
* SUMIF(value1[,value2[, ...]],condition)
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @param string $condition The criteria that defines which cells will be summed.
|
|
* @return float
|
|
*/
|
|
public static function SUMIF($aArgs, $condition, $sumArgs = array())
|
|
{
|
|
$returnValue = 0;
|
|
|
|
$aArgs = PHPExcel_Calculation_Functions::flattenArray($aArgs);
|
|
$sumArgs = PHPExcel_Calculation_Functions::flattenArray($sumArgs);
|
|
if (empty($sumArgs)) {
|
|
$sumArgs = $aArgs;
|
|
}
|
|
$condition = PHPExcel_Calculation_Functions::ifCondition($condition);
|
|
// Loop through arguments
|
|
foreach ($aArgs as $key => $arg) {
|
|
if (!is_numeric($arg)) {
|
|
$arg = str_replace('"', '""', $arg);
|
|
$arg = PHPExcel_Calculation::wrapResult(strtoupper($arg));
|
|
}
|
|
|
|
$testCondition = '='.$arg.$condition;
|
|
if (PHPExcel_Calculation::getInstance()->_calculateFormulaValue($testCondition)) {
|
|
// Is it a value within our criteria
|
|
$returnValue += $sumArgs[$key];
|
|
}
|
|
}
|
|
|
|
return $returnValue;
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMIFS
|
|
*
|
|
* Counts the number of cells that contain numbers within the list of arguments
|
|
*
|
|
* Excel Function:
|
|
* SUMIFS(value1[,value2[, ...]],condition)
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @param string $condition The criteria that defines which cells will be summed.
|
|
* @return float
|
|
*/
|
|
public static function SUMIFS() {
|
|
$arrayList = func_get_args();
|
|
|
|
$sumArgs = PHPExcel_Calculation_Functions::flattenArray(array_shift($arrayList));
|
|
|
|
while (count($arrayList) > 0) {
|
|
$aArgsArray[] = PHPExcel_Calculation_Functions::flattenArray(array_shift($arrayList));
|
|
$conditions[] = PHPExcel_Calculation_Functions::ifCondition(array_shift($arrayList));
|
|
}
|
|
|
|
// Loop through each set of arguments and conditions
|
|
foreach ($conditions as $index => $condition) {
|
|
$aArgs = $aArgsArray[$index];
|
|
$wildcard = false;
|
|
if ((strpos($condition, '*') !== false) || (strpos($condition, '?') !== false)) {
|
|
// * and ? are wildcard characters.
|
|
// Use ~* and ~? for literal star and question mark
|
|
// Code logic doesn't yet handle escaping
|
|
$condition = trim(ltrim($condition, '=<>'), '"');
|
|
$wildcard = true;
|
|
}
|
|
// Loop through arguments
|
|
foreach ($aArgs as $key => $arg) {
|
|
if ($wildcard) {
|
|
if (!fnmatch($condition, $arg, FNM_CASEFOLD)) {
|
|
// Is it a value within our criteria
|
|
$sumArgs[$key] = 0.0;
|
|
}
|
|
} else {
|
|
if (!is_numeric($arg)) {
|
|
$arg = PHPExcel_Calculation::wrapResult(strtoupper($arg));
|
|
}
|
|
$testCondition = '='.$arg.$condition;
|
|
if (!PHPExcel_Calculation::getInstance()->_calculateFormulaValue($testCondition)) {
|
|
// Is it a value within our criteria
|
|
$sumArgs[$key] = 0.0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return
|
|
return array_sum($sumArgs);
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMPRODUCT
|
|
*
|
|
* Excel Function:
|
|
* SUMPRODUCT(value1[,value2[, ...]])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @return float
|
|
*/
|
|
public static function SUMPRODUCT()
|
|
{
|
|
$arrayList = func_get_args();
|
|
|
|
$wrkArray = PHPExcel_Calculation_Functions::flattenArray(array_shift($arrayList));
|
|
$wrkCellCount = count($wrkArray);
|
|
|
|
for ($i=0; $i< $wrkCellCount; ++$i) {
|
|
if ((!is_numeric($wrkArray[$i])) || (is_string($wrkArray[$i]))) {
|
|
$wrkArray[$i] = 0;
|
|
}
|
|
}
|
|
|
|
foreach ($arrayList as $matrixData) {
|
|
$array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData);
|
|
$count = count($array2);
|
|
if ($wrkCellCount != $count) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
|
|
foreach ($array2 as $i => $val) {
|
|
if ((!is_numeric($val)) || (is_string($val))) {
|
|
$val = 0;
|
|
}
|
|
$wrkArray[$i] *= $val;
|
|
}
|
|
}
|
|
|
|
return array_sum($wrkArray);
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMSQ
|
|
*
|
|
* SUMSQ returns the sum of the squares of the arguments
|
|
*
|
|
* Excel Function:
|
|
* SUMSQ(value1[,value2[, ...]])
|
|
*
|
|
* @access public
|
|
* @category Mathematical and Trigonometric Functions
|
|
* @param mixed $arg,... Data values
|
|
* @return float
|
|
*/
|
|
public static function SUMSQ()
|
|
{
|
|
$returnValue = 0;
|
|
|
|
// Loop through arguments
|
|
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
|
|
// Is it a numeric value?
|
|
if ((is_numeric($arg)) && (!is_string($arg))) {
|
|
$returnValue += ($arg * $arg);
|
|
}
|
|
}
|
|
|
|
return $returnValue;
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMX2MY2
|
|
*
|
|
* @param mixed[] $matrixData1 Matrix #1
|
|
* @param mixed[] $matrixData2 Matrix #2
|
|
* @return float
|
|
*/
|
|
public static function SUMX2MY2($matrixData1, $matrixData2)
|
|
{
|
|
$array1 = PHPExcel_Calculation_Functions::flattenArray($matrixData1);
|
|
$array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData2);
|
|
$count = min(count($array1), count($array2));
|
|
|
|
$result = 0;
|
|
for ($i = 0; $i < $count; ++$i) {
|
|
if (((is_numeric($array1[$i])) && (!is_string($array1[$i]))) &&
|
|
((is_numeric($array2[$i])) && (!is_string($array2[$i])))) {
|
|
$result += ($array1[$i] * $array1[$i]) - ($array2[$i] * $array2[$i]);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMX2PY2
|
|
*
|
|
* @param mixed[] $matrixData1 Matrix #1
|
|
* @param mixed[] $matrixData2 Matrix #2
|
|
* @return float
|
|
*/
|
|
public static function SUMX2PY2($matrixData1, $matrixData2)
|
|
{
|
|
$array1 = PHPExcel_Calculation_Functions::flattenArray($matrixData1);
|
|
$array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData2);
|
|
$count = min(count($array1), count($array2));
|
|
|
|
$result = 0;
|
|
for ($i = 0; $i < $count; ++$i) {
|
|
if (((is_numeric($array1[$i])) && (!is_string($array1[$i]))) &&
|
|
((is_numeric($array2[$i])) && (!is_string($array2[$i])))) {
|
|
$result += ($array1[$i] * $array1[$i]) + ($array2[$i] * $array2[$i]);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* SUMXMY2
|
|
*
|
|
* @param mixed[] $matrixData1 Matrix #1
|
|
* @param mixed[] $matrixData2 Matrix #2
|
|
* @return float
|
|
*/
|
|
public static function SUMXMY2($matrixData1, $matrixData2)
|
|
{
|
|
$array1 = PHPExcel_Calculation_Functions::flattenArray($matrixData1);
|
|
$array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData2);
|
|
$count = min(count($array1), count($array2));
|
|
|
|
$result = 0;
|
|
for ($i = 0; $i < $count; ++$i) {
|
|
if (((is_numeric($array1[$i])) && (!is_string($array1[$i]))) &&
|
|
((is_numeric($array2[$i])) && (!is_string($array2[$i])))) {
|
|
$result += ($array1[$i] - $array2[$i]) * ($array1[$i] - $array2[$i]);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
|
|
/**
|
|
* TRUNC
|
|
*
|
|
* Truncates value to the number of fractional digits by number_digits.
|
|
*
|
|
* @param float $value
|
|
* @param int $digits
|
|
* @return float Truncated value
|
|
*/
|
|
public static function TRUNC($value = 0, $digits = 0)
|
|
{
|
|
$value = PHPExcel_Calculation_Functions::flattenSingleValue($value);
|
|
$digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);
|
|
|
|
// Validate parameters
|
|
if ((!is_numeric($value)) || (!is_numeric($digits))) {
|
|
return PHPExcel_Calculation_Functions::VALUE();
|
|
}
|
|
$digits = floor($digits);
|
|
|
|
// Truncate
|
|
$adjust = pow(10, $digits);
|
|
|
|
if (($digits > 0) && (rtrim(intval((abs($value) - abs(intval($value))) * $adjust), '0') < $adjust/10)) {
|
|
return $value;
|
|
}
|
|
|
|
return (intval($value * $adjust)) / $adjust;
|
|
}
|
|
}
|