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Diffstat (limited to 'admin/survey/excel/PHPExcel/Calculation/Functions.php')
| -rw-r--r-- | admin/survey/excel/PHPExcel/Calculation/Functions.php | 813 |
1 files changed, 813 insertions, 0 deletions
diff --git a/admin/survey/excel/PHPExcel/Calculation/Functions.php b/admin/survey/excel/PHPExcel/Calculation/Functions.php new file mode 100644 index 0000000..6ea33fa --- /dev/null +++ b/admin/survey/excel/PHPExcel/Calculation/Functions.php @@ -0,0 +1,813 @@ +<?php
+/**
+ * PHPExcel
+ *
+ * Copyright (c) 2006 - 2012 PHPExcel
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * @category PHPExcel
+ * @package PHPExcel_Calculation
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
+ * @version 1.7.8, 2012-10-12
+ */
+
+
+/** PHPExcel root directory */
+if (!defined('PHPEXCEL_ROOT')) {
+ /**
+ * @ignore
+ */
+ define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
+ require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
+}
+
+
+/** MAX_VALUE */
+define('MAX_VALUE', 1.2e308);
+
+/** 2 / PI */
+define('M_2DIVPI', 0.63661977236758134307553505349006);
+
+/** MAX_ITERATIONS */
+define('MAX_ITERATIONS', 256);
+
+/** PRECISION */
+define('PRECISION', 8.88E-016);
+
+
+/**
+ * PHPExcel_Calculation_Functions
+ *
+ * @category PHPExcel
+ * @package PHPExcel_Calculation
+ * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
+ */
+class PHPExcel_Calculation_Functions {
+
+ /** constants */
+ const COMPATIBILITY_EXCEL = 'Excel';
+ const COMPATIBILITY_GNUMERIC = 'Gnumeric';
+ const COMPATIBILITY_OPENOFFICE = 'OpenOfficeCalc';
+
+ const RETURNDATE_PHP_NUMERIC = 'P';
+ const RETURNDATE_PHP_OBJECT = 'O';
+ const RETURNDATE_EXCEL = 'E';
+
+
+ /**
+ * Compatibility mode to use for error checking and responses
+ *
+ * @access private
+ * @var string
+ */
+ protected static $compatibilityMode = self::COMPATIBILITY_EXCEL;
+
+ /**
+ * Data Type to use when returning date values
+ *
+ * @access private
+ * @var string
+ */
+ protected static $ReturnDateType = self::RETURNDATE_EXCEL;
+
+ /**
+ * List of error codes
+ *
+ * @access private
+ * @var array
+ */
+ protected static $_errorCodes = array( 'null' => '#NULL!',
+ 'divisionbyzero' => '#DIV/0!',
+ 'value' => '#VALUE!',
+ 'reference' => '#REF!',
+ 'name' => '#NAME?',
+ 'num' => '#NUM!',
+ 'na' => '#N/A',
+ 'gettingdata' => '#GETTING_DATA'
+ );
+
+
+ /**
+ * Set the Compatibility Mode
+ *
+ * @access public
+ * @category Function Configuration
+ * @param string $compatibilityMode Compatibility Mode
+ * Permitted values are:
+ * PHPExcel_Calculation_Functions::COMPATIBILITY_EXCEL 'Excel'
+ * PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC 'Gnumeric'
+ * PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE 'OpenOfficeCalc'
+ * @return boolean (Success or Failure)
+ */
+ public static function setCompatibilityMode($compatibilityMode) {
+ if (($compatibilityMode == self::COMPATIBILITY_EXCEL) ||
+ ($compatibilityMode == self::COMPATIBILITY_GNUMERIC) ||
+ ($compatibilityMode == self::COMPATIBILITY_OPENOFFICE)) {
+ self::$compatibilityMode = $compatibilityMode;
+ return True;
+ }
+ return False;
+ } // function setCompatibilityMode()
+
+
+ /**
+ * Return the current Compatibility Mode
+ *
+ * @access public
+ * @category Function Configuration
+ * @return string Compatibility Mode
+ * Possible Return values are:
+ * PHPExcel_Calculation_Functions::COMPATIBILITY_EXCEL 'Excel'
+ * PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC 'Gnumeric'
+ * PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE 'OpenOfficeCalc'
+ */
+ public static function getCompatibilityMode() {
+ return self::$compatibilityMode;
+ } // function getCompatibilityMode()
+
+
+ /**
+ * Set the Return Date Format used by functions that return a date/time (Excel, PHP Serialized Numeric or PHP Object)
+ *
+ * @access public
+ * @category Function Configuration
+ * @param string $returnDateType Return Date Format
+ * Permitted values are:
+ * PHPExcel_Calculation_Functions::RETURNDATE_PHP_NUMERIC 'P'
+ * PHPExcel_Calculation_Functions::RETURNDATE_PHP_OBJECT 'O'
+ * PHPExcel_Calculation_Functions::RETURNDATE_EXCEL 'E'
+ * @return boolean Success or failure
+ */
+ public static function setReturnDateType($returnDateType) {
+ if (($returnDateType == self::RETURNDATE_PHP_NUMERIC) ||
+ ($returnDateType == self::RETURNDATE_PHP_OBJECT) ||
+ ($returnDateType == self::RETURNDATE_EXCEL)) {
+ self::$ReturnDateType = $returnDateType;
+ return True;
+ }
+ return False;
+ } // function setReturnDateType()
+
+
+ /**
+ * Return the current Return Date Format for functions that return a date/time (Excel, PHP Serialized Numeric or PHP Object)
+ *
+ * @access public
+ * @category Function Configuration
+ * @return string Return Date Format
+ * Possible Return values are:
+ * PHPExcel_Calculation_Functions::RETURNDATE_PHP_NUMERIC 'P'
+ * PHPExcel_Calculation_Functions::RETURNDATE_PHP_OBJECT 'O'
+ * PHPExcel_Calculation_Functions::RETURNDATE_EXCEL 'E'
+ */
+ public static function getReturnDateType() {
+ return self::$ReturnDateType;
+ } // function getReturnDateType()
+
+
+ /**
+ * DUMMY
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #Not Yet Implemented
+ */
+ public static function DUMMY() {
+ return '#Not Yet Implemented';
+ } // function DUMMY()
+
+
+ /**
+ * DIV0
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #Not Yet Implemented
+ */
+ public static function DIV0() {
+ return self::$_errorCodes['divisionbyzero'];
+ } // function DIV0()
+
+
+ /**
+ * NA
+ *
+ * Excel Function:
+ * =NA()
+ *
+ * Returns the error value #N/A
+ * #N/A is the error value that means "no value is available."
+ *
+ * @access public
+ * @category Logical Functions
+ * @return string #N/A!
+ */
+ public static function NA() {
+ return self::$_errorCodes['na'];
+ } // function NA()
+
+
+ /**
+ * NaN
+ *
+ * Returns the error value #NUM!
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #NUM!
+ */
+ public static function NaN() {
+ return self::$_errorCodes['num'];
+ } // function NaN()
+
+
+ /**
+ * NAME
+ *
+ * Returns the error value #NAME?
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #NAME?
+ */
+ public static function NAME() {
+ return self::$_errorCodes['name'];
+ } // function NAME()
+
+
+ /**
+ * REF
+ *
+ * Returns the error value #REF!
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #REF!
+ */
+ public static function REF() {
+ return self::$_errorCodes['reference'];
+ } // function REF()
+
+
+ /**
+ * NULL
+ *
+ * Returns the error value #NULL!
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #REF!
+ */
+ public static function NULL() {
+ return self::$_errorCodes['null'];
+ } // function NULL()
+
+
+ /**
+ * VALUE
+ *
+ * Returns the error value #VALUE!
+ *
+ * @access public
+ * @category Error Returns
+ * @return string #VALUE!
+ */
+ public static function VALUE() {
+ return self::$_errorCodes['value'];
+ } // function VALUE()
+
+
+ public static function isMatrixValue($idx) {
+ return ((substr_count($idx,'.') <= 1) || (preg_match('/\.[A-Z]/',$idx) > 0));
+ }
+
+
+ public static function isValue($idx) {
+ return (substr_count($idx,'.') == 0);
+ }
+
+
+ public static function isCellValue($idx) {
+ return (substr_count($idx,'.') > 1);
+ }
+
+
+ public static function _ifCondition($condition) {
+ $condition = PHPExcel_Calculation_Functions::flattenSingleValue($condition);
+ if (!in_array($condition{0},array('>', '<', '='))) {
+ if (!is_numeric($condition)) { $condition = PHPExcel_Calculation::_wrapResult(strtoupper($condition)); }
+ return '='.$condition;
+ } else {
+ preg_match('/([<>=]+)(.*)/',$condition,$matches);
+ list(,$operator,$operand) = $matches;
+ if (!is_numeric($operand)) { $operand = PHPExcel_Calculation::_wrapResult(strtoupper($operand)); }
+ return $operator.$operand;
+ }
+ } // function _ifCondition()
+
+
+ /**
+ * ERROR_TYPE
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function ERROR_TYPE($value = '') {
+ $value = self::flattenSingleValue($value);
+
+ $i = 1;
+ foreach(self::$_errorCodes as $errorCode) {
+ if ($value === $errorCode) {
+ return $i;
+ }
+ ++$i;
+ }
+ return self::NA();
+ } // function ERROR_TYPE()
+
+
+ /**
+ * IS_BLANK
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_BLANK($value = NULL) {
+ if (!is_null($value)) {
+ $value = self::flattenSingleValue($value);
+ }
+
+ return is_null($value);
+ } // function IS_BLANK()
+
+
+ /**
+ * IS_ERR
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_ERR($value = '') {
+ $value = self::flattenSingleValue($value);
+
+ return self::IS_ERROR($value) && (!self::IS_NA($value));
+ } // function IS_ERR()
+
+
+ /**
+ * IS_ERROR
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_ERROR($value = '') {
+ $value = self::flattenSingleValue($value);
+
+ if (!is_string($value))
+ return false;
+ return in_array($value, array_values(self::$_errorCodes));
+ } // function IS_ERROR()
+
+
+ /**
+ * IS_NA
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_NA($value = '') {
+ $value = self::flattenSingleValue($value);
+
+ return ($value === self::NA());
+ } // function IS_NA()
+
+
+ /**
+ * IS_EVEN
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_EVEN($value = NULL) {
+ $value = self::flattenSingleValue($value);
+
+ if ($value === NULL)
+ return self::NAME();
+ if ((is_bool($value)) || ((is_string($value)) && (!is_numeric($value))))
+ return self::VALUE();
+ return ($value % 2 == 0);
+ } // function IS_EVEN()
+
+
+ /**
+ * IS_ODD
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_ODD($value = NULL) {
+ $value = self::flattenSingleValue($value);
+
+ if ($value === NULL)
+ return self::NAME();
+ if ((is_bool($value)) || ((is_string($value)) && (!is_numeric($value))))
+ return self::VALUE();
+ return (abs($value) % 2 == 1);
+ } // function IS_ODD()
+
+
+ /**
+ * IS_NUMBER
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_NUMBER($value = NULL) {
+ $value = self::flattenSingleValue($value);
+
+ if (is_string($value)) {
+ return False;
+ }
+ return is_numeric($value);
+ } // function IS_NUMBER()
+
+
+ /**
+ * IS_LOGICAL
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_LOGICAL($value = NULL) {
+ $value = self::flattenSingleValue($value);
+
+ return is_bool($value);
+ } // function IS_LOGICAL()
+
+
+ /**
+ * IS_TEXT
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_TEXT($value = NULL) {
+ $value = self::flattenSingleValue($value);
+
+ return (is_string($value) && !self::IS_ERROR($value));
+ } // function IS_TEXT()
+
+
+ /**
+ * IS_NONTEXT
+ *
+ * @param mixed $value Value to check
+ * @return boolean
+ */
+ public static function IS_NONTEXT($value = NULL) {
+ return !self::IS_TEXT($value);
+ } // function IS_NONTEXT()
+
+
+ /**
+ * VERSION
+ *
+ * @return string Version information
+ */
+ public static function VERSION() {
+ return 'PHPExcel 1.7.8, 2012-10-12';
+ } // function VERSION()
+
+
+ /**
+ * N
+ *
+ * Returns a value converted to a number
+ *
+ * @param value The value you want converted
+ * @return number N converts values listed in the following table
+ * If value is or refers to N returns
+ * A number That number
+ * A date The serial number of that date
+ * TRUE 1
+ * FALSE 0
+ * An error value The error value
+ * Anything else 0
+ */
+ public static function N($value = NULL) {
+ while (is_array($value)) {
+ $value = array_shift($value);
+ }
+
+ switch (gettype($value)) {
+ case 'double' :
+ case 'float' :
+ case 'integer' :
+ return $value;
+ break;
+ case 'boolean' :
+ return (integer) $value;
+ break;
+ case 'string' :
+ // Errors
+ if ((strlen($value) > 0) && ($value{0} == '#')) {
+ return $value;
+ }
+ break;
+ }
+ return 0;
+ } // function N()
+
+
+ /**
+ * TYPE
+ *
+ * Returns a number that identifies the type of a value
+ *
+ * @param value The value you want tested
+ * @return number N converts values listed in the following table
+ * If value is or refers to N returns
+ * A number 1
+ * Text 2
+ * Logical Value 4
+ * An error value 16
+ * Array or Matrix 64
+ */
+ public static function TYPE($value = NULL) {
+ $value = self::flattenArrayIndexed($value);
+ if (is_array($value) && (count($value) > 1)) {
+ $a = array_keys($value);
+ $a = array_pop($a);
+ // Range of cells is an error
+ if (self::isCellValue($a)) {
+ return 16;
+ // Test for Matrix
+ } elseif (self::isMatrixValue($a)) {
+ return 64;
+ }
+ } elseif(empty($value)) {
+ // Empty Cell
+ return 1;
+ }
+ $value = self::flattenSingleValue($value);
+
+ if (($value === NULL) || (is_float($value)) || (is_int($value))) {
+ return 1;
+ } elseif(is_bool($value)) {
+ return 4;
+ } elseif(is_array($value)) {
+ return 64;
+ break;
+ } elseif(is_string($value)) {
+ // Errors
+ if ((strlen($value) > 0) && ($value{0} == '#')) {
+ return 16;
+ }
+ return 2;
+ }
+ return 0;
+ } // function TYPE()
+
+
+ /**
+ * Convert a multi-dimensional array to a simple 1-dimensional array
+ *
+ * @param array $array Array to be flattened
+ * @return array Flattened array
+ */
+ public static function flattenArray($array) {
+ if (!is_array($array)) {
+ return (array) $array;
+ }
+
+ $arrayValues = array();
+ foreach ($array as $value) {
+ if (is_array($value)) {
+ foreach ($value as $val) {
+ if (is_array($val)) {
+ foreach ($val as $v) {
+ $arrayValues[] = $v;
+ }
+ } else {
+ $arrayValues[] = $val;
+ }
+ }
+ } else {
+ $arrayValues[] = $value;
+ }
+ }
+
+ return $arrayValues;
+ } // function flattenArray()
+
+
+ /**
+ * Convert a multi-dimensional array to a simple 1-dimensional array, but retain an element of indexing
+ *
+ * @param array $array Array to be flattened
+ * @return array Flattened array
+ */
+ public static function flattenArrayIndexed($array) {
+ if (!is_array($array)) {
+ return (array) $array;
+ }
+
+ $arrayValues = array();
+ foreach ($array as $k1 => $value) {
+ if (is_array($value)) {
+ foreach ($value as $k2 => $val) {
+ if (is_array($val)) {
+ foreach ($val as $k3 => $v) {
+ $arrayValues[$k1.'.'.$k2.'.'.$k3] = $v;
+ }
+ } else {
+ $arrayValues[$k1.'.'.$k2] = $val;
+ }
+ }
+ } else {
+ $arrayValues[$k1] = $value;
+ }
+ }
+
+ return $arrayValues;
+ } // function flattenArrayIndexed()
+
+
+ /**
+ * Convert an array to a single scalar value by extracting the first element
+ *
+ * @param mixed $value Array or scalar value
+ * @return mixed
+ */
+ public static function flattenSingleValue($value = '') {
+ while (is_array($value)) {
+ $value = array_pop($value);
+ }
+
+ return $value;
+ } // function flattenSingleValue()
+
+} // class PHPExcel_Calculation_Functions
+
+
+//
+// There are a few mathematical functions that aren't available on all versions of PHP for all platforms
+// These functions aren't available in Windows implementations of PHP prior to version 5.3.0
+// So we test if they do exist for this version of PHP/operating platform; and if not we create them
+//
+if (!function_exists('acosh')) {
+ function acosh($x) {
+ return 2 * log(sqrt(($x + 1) / 2) + sqrt(($x - 1) / 2));
+ } // function acosh()
+}
+
+if (!function_exists('asinh')) {
+ function asinh($x) {
+ return log($x + sqrt(1 + $x * $x));
+ } // function asinh()
+}
+
+if (!function_exists('atanh')) {
+ function atanh($x) {
+ return (log(1 + $x) - log(1 - $x)) / 2;
+ } // function atanh()
+}
+
+if (!function_exists('money_format')) {
+ function money_format($format, $number) {
+ $regex = array( '/%((?:[\^!\-]|\+|\(|\=.)*)([0-9]+)?(?:#([0-9]+))?',
+ '(?:\.([0-9]+))?([in%])/'
+ );
+ $regex = implode('', $regex);
+ if (setlocale(LC_MONETARY, null) == '') {
+ setlocale(LC_MONETARY, '');
+ }
+ $locale = localeconv();
+ $number = floatval($number);
+ if (!preg_match($regex, $format, $fmatch)) {
+ trigger_error("No format specified or invalid format", E_USER_WARNING);
+ return $number;
+ }
+ $flags = array( 'fillchar' => preg_match('/\=(.)/', $fmatch[1], $match) ? $match[1] : ' ',
+ 'nogroup' => preg_match('/\^/', $fmatch[1]) > 0,
+ 'usesignal' => preg_match('/\+|\(/', $fmatch[1], $match) ? $match[0] : '+',
+ 'nosimbol' => preg_match('/\!/', $fmatch[1]) > 0,
+ 'isleft' => preg_match('/\-/', $fmatch[1]) > 0
+ );
+ $width = trim($fmatch[2]) ? (int)$fmatch[2] : 0;
+ $left = trim($fmatch[3]) ? (int)$fmatch[3] : 0;
+ $right = trim($fmatch[4]) ? (int)$fmatch[4] : $locale['int_frac_digits'];
+ $conversion = $fmatch[5];
+ $positive = true;
+ if ($number < 0) {
+ $positive = false;
+ $number *= -1;
+ }
+ $letter = $positive ? 'p' : 'n';
+ $prefix = $suffix = $cprefix = $csuffix = $signal = '';
+ if (!$positive) {
+ $signal = $locale['negative_sign'];
+ switch (true) {
+ case $locale['n_sign_posn'] == 0 || $flags['usesignal'] == '(':
+ $prefix = '(';
+ $suffix = ')';
+ break;
+ case $locale['n_sign_posn'] == 1:
+ $prefix = $signal;
+ break;
+ case $locale['n_sign_posn'] == 2:
+ $suffix = $signal;
+ break;
+ case $locale['n_sign_posn'] == 3:
+ $cprefix = $signal;
+ break;
+ case $locale['n_sign_posn'] == 4:
+ $csuffix = $signal;
+ break;
+ }
+ }
+ if (!$flags['nosimbol']) {
+ $currency = $cprefix;
+ $currency .= ($conversion == 'i' ? $locale['int_curr_symbol'] : $locale['currency_symbol']);
+ $currency .= $csuffix;
+ $currency = iconv('ISO-8859-1','UTF-8',$currency);
+ } else {
+ $currency = '';
+ }
+ $space = $locale["{$letter}_sep_by_space"] ? ' ' : '';
+
+ if (!isset($locale['mon_decimal_point']) || empty($locale['mon_decimal_point'])) {
+ $locale['mon_decimal_point'] = (!isset($locale['decimal_point']) || empty($locale['decimal_point'])) ?
+ $locale['decimal_point'] :
+ '.';
+ }
+
+ $number = number_format($number, $right, $locale['mon_decimal_point'], $flags['nogroup'] ? '' : $locale['mon_thousands_sep'] );
+ $number = explode($locale['mon_decimal_point'], $number);
+
+ $n = strlen($prefix) + strlen($currency);
+ if ($left > 0 && $left > $n) {
+ if ($flags['isleft']) {
+ $number[0] .= str_repeat($flags['fillchar'], $left - $n);
+ } else {
+ $number[0] = str_repeat($flags['fillchar'], $left - $n) . $number[0];
+ }
+ }
+ $number = implode($locale['mon_decimal_point'], $number);
+ if ($locale["{$letter}_cs_precedes"]) {
+ $number = $prefix . $currency . $space . $number . $suffix;
+ } else {
+ $number = $prefix . $number . $space . $currency . $suffix;
+ }
+ if ($width > 0) {
+ $number = str_pad($number, $width, $flags['fillchar'], $flags['isleft'] ? STR_PAD_RIGHT : STR_PAD_LEFT);
+ }
+ $format = str_replace($fmatch[0], $number, $format);
+ return $format;
+ } // function money_format()
+}
+
+
+//
+// Strangely, PHP doesn't have a mb_str_replace multibyte function
+// As we'll only ever use this function with UTF-8 characters, we can simply "hard-code" the character set
+//
+if ((!function_exists('mb_str_replace')) &&
+ (function_exists('mb_substr')) && (function_exists('mb_strlen')) && (function_exists('mb_strpos'))) {
+ function mb_str_replace($search, $replace, $subject) {
+ if(is_array($subject)) {
+ $ret = array();
+ foreach($subject as $key => $val) {
+ $ret[$key] = mb_str_replace($search, $replace, $val);
+ }
+ return $ret;
+ }
+
+ foreach((array) $search as $key => $s) {
+ if($s == '') {
+ continue;
+ }
+ $r = !is_array($replace) ? $replace : (array_key_exists($key, $replace) ? $replace[$key] : '');
+ $pos = mb_strpos($subject, $s, 0, 'UTF-8');
+ while($pos !== false) {
+ $subject = mb_substr($subject, 0, $pos, 'UTF-8') . $r . mb_substr($subject, $pos + mb_strlen($s, 'UTF-8'), 65535, 'UTF-8');
+ $pos = mb_strpos($subject, $s, $pos + mb_strlen($r, 'UTF-8'), 'UTF-8');
+ }
+ }
+ return $subject;
+ }
+}
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