File Source for Functions.php

<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2011 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 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.6, 2011-02-27
*/
/** 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 - 2011 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::$_errorCodes['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);
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 ($value === self::$_errorCodes['na']);
} // function IS_NA()
/**
* IS_EVEN
*
* @param mixed $value Value to check
* @return boolean
*/
public static function IS_EVEN($value = 0) {
$value = self::flattenSingleValue($value);
if ((is_bool($value)) || ((is_string($value)) && (!is_numeric($value)))) {
return self::$_errorCodes['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 ((is_bool($value)) || ((is_string($value)) && (!is_numeric($value)))) {
return self::$_errorCodes['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 = 0) {
$value = self::flattenSingleValue($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 = true) {
$value = self::flattenSingleValue($value);
return is_bool($value);
} // function IS_LOGICAL()
/**
* IS_TEXT
*
* @param mixed $value Value to check
* @return boolean
*/
public static function IS_TEXT($value = '') {
$value = self::flattenSingleValue($value);
return is_string($value);
} // function IS_TEXT()
/**
* IS_NONTEXT
*
* @param mixed $value Value to check
* @return boolean
*/
public static function IS_NONTEXT($value = '') {
return !self::IS_TEXT($value);
} // function IS_NONTEXT()
/**
* VERSION
*
* @return string Version information
*/
public static function VERSION() {
return 'PHPExcel 1.7.6, 2011-02-27';
} // function VERSION()
/**
* N
*
* Returns a value converted to a number
*
* @param value The value you want converted
* @return number N converts values listed in the following table
* If value is or refers to N returns
* A number That number
* A date The serial number of that date
* TRUE 1
* FALSE 0
* An error value The error value
* Anything else 0
*/
public static function N($value) {
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) {
$value = self::flattenArrayIndexed($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(count($value) == 0) {
// Empty Cell
return 1;
}
$value = self::flattenSingleValue($value);
if ((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"] ? ' ' : '';
$number = number_format($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;
}
}

Source for file Functions.php