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<?php
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/**
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* PHPExcel
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*
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* Copyright (c) 2006 - 2013 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 - 2013 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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/** 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_Logical
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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 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
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*/
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class PHPExcel_Calculation_Logical {
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/**
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* TRUE
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*
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* Returns the boolean TRUE.
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*
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* Excel Function:
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* =TRUE()
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*
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* @access public
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* @category Logical Functions
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* @return boolean True
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*/
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public static function TRUE() {
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return TRUE;
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} // function TRUE()
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/**
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* FALSE
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*
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* Returns the boolean FALSE.
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*
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* Excel Function:
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* =FALSE()
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*
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* @access public
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* @category Logical Functions
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* @return boolean False
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*/
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public static function FALSE() {
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return FALSE;
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} // function FALSE()
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/**
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* LOGICAL_AND
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*
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* Returns boolean TRUE if all its arguments are TRUE; returns FALSE if one or more argument is FALSE.
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*
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* Excel Function:
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* =AND(logical1[,logical2[, ...]])
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*
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* The arguments must evaluate to logical values such as TRUE or FALSE, or the arguments must be arrays
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* or references that contain logical values.
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*
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* Boolean arguments are treated as True or False as appropriate
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* Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False
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* If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds
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* the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value
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*
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* @access public
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* @category Logical Functions
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* @param mixed $arg,... Data values
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* @return boolean The logical AND of the arguments.
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*/
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public static function LOGICAL_AND() {
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// Return value
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$returnValue = TRUE;
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// Loop through the arguments
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$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
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$argCount = -1;
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foreach ($aArgs as $argCount => $arg) {
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// Is it a boolean value?
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if (is_bool($arg)) {
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$returnValue = $returnValue && $arg;
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} elseif ((is_numeric($arg)) && (!is_string($arg))) {
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$returnValue = $returnValue && ($arg != 0);
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} elseif (is_string($arg)) {
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$arg = strtoupper($arg);
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if (($arg == 'TRUE') || ($arg == PHPExcel_Calculation::getTRUE())) {
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$arg = TRUE;
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} elseif (($arg == 'FALSE') || ($arg == PHPExcel_Calculation::getFALSE())) {
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$arg = FALSE;
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} else {
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return PHPExcel_Calculation_Functions::VALUE();
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}
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$returnValue = $returnValue && ($arg != 0);
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}
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}
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// Return
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if ($argCount < 0) {
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return PHPExcel_Calculation_Functions::VALUE();
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}
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return $returnValue;
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} // function LOGICAL_AND()
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/**
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* LOGICAL_OR
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*
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* Returns boolean TRUE if any argument is TRUE; returns FALSE if all arguments are FALSE.
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*
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* Excel Function:
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* =OR(logical1[,logical2[, ...]])
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*
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* The arguments must evaluate to logical values such as TRUE or FALSE, or the arguments must be arrays
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* or references that contain logical values.
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*
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* Boolean arguments are treated as True or False as appropriate
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* Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False
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* If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds
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* the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value
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*
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* @access public
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* @category Logical Functions
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* @param mixed $arg,... Data values
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* @return boolean The logical OR of the arguments.
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*/
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public static function LOGICAL_OR() {
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// Return value
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$returnValue = FALSE;
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// Loop through the arguments
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$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
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$argCount = -1;
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foreach ($aArgs as $argCount => $arg) {
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// Is it a boolean value?
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if (is_bool($arg)) {
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$returnValue = $returnValue || $arg;
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} elseif ((is_numeric($arg)) && (!is_string($arg))) {
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$returnValue = $returnValue || ($arg != 0);
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} elseif (is_string($arg)) {
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$arg = strtoupper($arg);
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if (($arg == 'TRUE') || ($arg == PHPExcel_Calculation::getTRUE())) {
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$arg = TRUE;
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} elseif (($arg == 'FALSE') || ($arg == PHPExcel_Calculation::getFALSE())) {
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$arg = FALSE;
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} else {
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return PHPExcel_Calculation_Functions::VALUE();
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}
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$returnValue = $returnValue || ($arg != 0);
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}
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}
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// Return
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if ($argCount < 0) {
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return PHPExcel_Calculation_Functions::VALUE();
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}
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return $returnValue;
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} // function LOGICAL_OR()
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/**
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* NOT
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*
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* Returns the boolean inverse of the argument.
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*
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* Excel Function:
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* =NOT(logical)
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*
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* The argument must evaluate to a logical value such as TRUE or FALSE
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*
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* Boolean arguments are treated as True or False as appropriate
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* Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False
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* If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds
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* the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value
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*
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* @access public
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* @category Logical Functions
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* @param mixed $logical A value or expression that can be evaluated to TRUE or FALSE
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* @return boolean The boolean inverse of the argument.
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*/
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public static function NOT($logical=FALSE) {
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$logical = PHPExcel_Calculation_Functions::flattenSingleValue($logical);
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if (is_string($logical)) {
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$logical = strtoupper($logical);
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if (($logical == 'TRUE') || ($logical == PHPExcel_Calculation::getTRUE())) {
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return FALSE;
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} elseif (($logical == 'FALSE') || ($logical == PHPExcel_Calculation::getFALSE())) {
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return TRUE;
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} else {
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return PHPExcel_Calculation_Functions::VALUE();
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}
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}
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return !$logical;
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} // function NOT()
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/**
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* STATEMENT_IF
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*
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* Returns one value if a condition you specify evaluates to TRUE and another value if it evaluates to FALSE.
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*
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* Excel Function:
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* =IF(condition[,returnIfTrue[,returnIfFalse]])
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*
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* Condition is any value or expression that can be evaluated to TRUE or FALSE.
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* For example, A10=100 is a logical expression; if the value in cell A10 is equal to 100,
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* the expression evaluates to TRUE. Otherwise, the expression evaluates to FALSE.
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* This argument can use any comparison calculation operator.
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* ReturnIfTrue is the value that is returned if condition evaluates to TRUE.
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* For example, if this argument is the text string "Within budget" and the condition argument evaluates to TRUE,
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* then the IF function returns the text "Within budget"
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* If condition is TRUE and ReturnIfTrue is blank, this argument returns 0 (zero). To display the word TRUE, use
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* the logical value TRUE for this argument.
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* ReturnIfTrue can be another formula.
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* ReturnIfFalse is the value that is returned if condition evaluates to FALSE.
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* For example, if this argument is the text string "Over budget" and the condition argument evaluates to FALSE,
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* then the IF function returns the text "Over budget".
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* If condition is FALSE and ReturnIfFalse is omitted, then the logical value FALSE is returned.
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* If condition is FALSE and ReturnIfFalse is blank, then the value 0 (zero) is returned.
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* ReturnIfFalse can be another formula.
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*
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* @access public
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* @category Logical Functions
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* @param mixed $condition Condition to evaluate
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* @param mixed $returnIfTrue Value to return when condition is true
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* @param mixed $returnIfFalse Optional value to return when condition is false
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* @return mixed The value of returnIfTrue or returnIfFalse determined by condition
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*/
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public static function STATEMENT_IF($condition = TRUE, $returnIfTrue = 0, $returnIfFalse = FALSE) {
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$condition = (is_null($condition)) ? TRUE : (boolean) PHPExcel_Calculation_Functions::flattenSingleValue($condition);
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$returnIfTrue = (is_null($returnIfTrue)) ? 0 : PHPExcel_Calculation_Functions::flattenSingleValue($returnIfTrue);
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$returnIfFalse = (is_null($returnIfFalse)) ? FALSE : PHPExcel_Calculation_Functions::flattenSingleValue($returnIfFalse);
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return ($condition) ? $returnIfTrue : $returnIfFalse;
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} // function STATEMENT_IF()
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/**
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* IFERROR
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*
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* Excel Function:
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* =IFERROR(testValue,errorpart)
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*
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* @access public
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* @category Logical Functions
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* @param mixed $testValue Value to check, is also the value returned when no error
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* @param mixed $errorpart Value to return when testValue is an error condition
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* @return mixed The value of errorpart or testValue determined by error condition
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*/
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public static function IFERROR($testValue = '', $errorpart = '') {
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$testValue = (is_null($testValue)) ? '' : PHPExcel_Calculation_Functions::flattenSingleValue($testValue);
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$errorpart = (is_null($errorpart)) ? '' : PHPExcel_Calculation_Functions::flattenSingleValue($errorpart);
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return self::STATEMENT_IF(PHPExcel_Calculation_Functions::IS_ERROR($testValue), $errorpart, $testValue);
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} // function IFERROR()
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} // class PHPExcel_Calculation_Logical
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