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<?php |
/** |
* PHPExcel |
* |
* Copyright (c) 2006 - 2013 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 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel) |
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL |
* @version ##VERSION##, ##DATE## |
*/ |
|
|
/** PHPExcel root directory */ |
if (!defined('PHPEXCEL_ROOT')) { |
/** |
* @ignore |
*/ |
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../'); |
require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php'); |
} |
|
|
/** |
* PHPExcel_Calculation_Logical |
* |
* @category PHPExcel |
* @package PHPExcel_Calculation |
* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel) |
*/ |
class PHPExcel_Calculation_Logical { |
|
/** |
* TRUE |
* |
* Returns the boolean TRUE. |
* |
* Excel Function: |
* =TRUE() |
* |
* @access public |
* @category Logical Functions |
* @return boolean True |
*/ |
public static function TRUE() { |
return TRUE; |
} // function TRUE() |
|
|
/** |
* FALSE |
* |
* Returns the boolean FALSE. |
* |
* Excel Function: |
* =FALSE() |
* |
* @access public |
* @category Logical Functions |
* @return boolean False |
*/ |
public static function FALSE() { |
return FALSE; |
} // function FALSE() |
|
|
/** |
* LOGICAL_AND |
* |
* Returns boolean TRUE if all its arguments are TRUE; returns FALSE if one or more argument is FALSE. |
* |
* Excel Function: |
* =AND(logical1[,logical2[, ...]]) |
* |
* The arguments must evaluate to logical values such as TRUE or FALSE, or the arguments must be arrays |
* or references that contain logical values. |
* |
* Boolean arguments are treated as True or False as appropriate |
* Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False |
* If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds |
* the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value |
* |
* @access public |
* @category Logical Functions |
* @param mixed $arg,... Data values |
* @return boolean The logical AND of the arguments. |
*/ |
public static function LOGICAL_AND() { |
// Return value |
$returnValue = TRUE; |
|
// Loop through the arguments |
$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args()); |
$argCount = -1; |
foreach ($aArgs as $argCount => $arg) { |
// Is it a boolean value? |
if (is_bool($arg)) { |
$returnValue = $returnValue && $arg; |
} elseif ((is_numeric($arg)) && (!is_string($arg))) { |
$returnValue = $returnValue && ($arg != 0); |
} elseif (is_string($arg)) { |
$arg = strtoupper($arg); |
if (($arg == 'TRUE') || ($arg == PHPExcel_Calculation::getTRUE())) { |
$arg = TRUE; |
} elseif (($arg == 'FALSE') || ($arg == PHPExcel_Calculation::getFALSE())) { |
$arg = FALSE; |
} else { |
return PHPExcel_Calculation_Functions::VALUE(); |
} |
$returnValue = $returnValue && ($arg != 0); |
} |
} |
|
// Return |
if ($argCount < 0) { |
return PHPExcel_Calculation_Functions::VALUE(); |
} |
return $returnValue; |
} // function LOGICAL_AND() |
|
|
/** |
* LOGICAL_OR |
* |
* Returns boolean TRUE if any argument is TRUE; returns FALSE if all arguments are FALSE. |
* |
* Excel Function: |
* =OR(logical1[,logical2[, ...]]) |
* |
* The arguments must evaluate to logical values such as TRUE or FALSE, or the arguments must be arrays |
* or references that contain logical values. |
* |
* Boolean arguments are treated as True or False as appropriate |
* Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False |
* If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds |
* the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value |
* |
* @access public |
* @category Logical Functions |
* @param mixed $arg,... Data values |
* @return boolean The logical OR of the arguments. |
*/ |
public static function LOGICAL_OR() { |
// Return value |
$returnValue = FALSE; |
|
// Loop through the arguments |
$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args()); |
$argCount = -1; |
foreach ($aArgs as $argCount => $arg) { |
// Is it a boolean value? |
if (is_bool($arg)) { |
$returnValue = $returnValue || $arg; |
} elseif ((is_numeric($arg)) && (!is_string($arg))) { |
$returnValue = $returnValue || ($arg != 0); |
} elseif (is_string($arg)) { |
$arg = strtoupper($arg); |
if (($arg == 'TRUE') || ($arg == PHPExcel_Calculation::getTRUE())) { |
$arg = TRUE; |
} elseif (($arg == 'FALSE') || ($arg == PHPExcel_Calculation::getFALSE())) { |
$arg = FALSE; |
} else { |
return PHPExcel_Calculation_Functions::VALUE(); |
} |
$returnValue = $returnValue || ($arg != 0); |
} |
} |
|
// Return |
if ($argCount < 0) { |
return PHPExcel_Calculation_Functions::VALUE(); |
} |
return $returnValue; |
} // function LOGICAL_OR() |
|
|
/** |
* NOT |
* |
* Returns the boolean inverse of the argument. |
* |
* Excel Function: |
* =NOT(logical) |
* |
* The argument must evaluate to a logical value such as TRUE or FALSE |
* |
* Boolean arguments are treated as True or False as appropriate |
* Integer or floating point arguments are treated as True, except for 0 or 0.0 which are False |
* If any argument value is a string, or a Null, the function returns a #VALUE! error, unless the string holds |
* the value TRUE or FALSE, in which case it is evaluated as the corresponding boolean value |
* |
* @access public |
* @category Logical Functions |
* @param mixed $logical A value or expression that can be evaluated to TRUE or FALSE |
* @return boolean The boolean inverse of the argument. |
*/ |
public static function NOT($logical=FALSE) { |
$logical = PHPExcel_Calculation_Functions::flattenSingleValue($logical); |
if (is_string($logical)) { |
$logical = strtoupper($logical); |
if (($logical == 'TRUE') || ($logical == PHPExcel_Calculation::getTRUE())) { |
return FALSE; |
} elseif (($logical == 'FALSE') || ($logical == PHPExcel_Calculation::getFALSE())) { |
return TRUE; |
} else { |
return PHPExcel_Calculation_Functions::VALUE(); |
} |
} |
|
return !$logical; |
} // function NOT() |
|
/** |
* STATEMENT_IF |
* |
* Returns one value if a condition you specify evaluates to TRUE and another value if it evaluates to FALSE. |
* |
* Excel Function: |
* =IF(condition[,returnIfTrue[,returnIfFalse]]) |
* |
* Condition is any value or expression that can be evaluated to TRUE or FALSE. |
* For example, A10=100 is a logical expression; if the value in cell A10 is equal to 100, |
* the expression evaluates to TRUE. Otherwise, the expression evaluates to FALSE. |
* This argument can use any comparison calculation operator. |
* ReturnIfTrue is the value that is returned if condition evaluates to TRUE. |
* For example, if this argument is the text string "Within budget" and the condition argument evaluates to TRUE, |
* then the IF function returns the text "Within budget" |
* If condition is TRUE and ReturnIfTrue is blank, this argument returns 0 (zero). To display the word TRUE, use |
* the logical value TRUE for this argument. |
* ReturnIfTrue can be another formula. |
* ReturnIfFalse is the value that is returned if condition evaluates to FALSE. |
* For example, if this argument is the text string "Over budget" and the condition argument evaluates to FALSE, |
* then the IF function returns the text "Over budget". |
* If condition is FALSE and ReturnIfFalse is omitted, then the logical value FALSE is returned. |
* If condition is FALSE and ReturnIfFalse is blank, then the value 0 (zero) is returned. |
* ReturnIfFalse can be another formula. |
* |
* @access public |
* @category Logical Functions |
* @param mixed $condition Condition to evaluate |
* @param mixed $returnIfTrue Value to return when condition is true |
* @param mixed $returnIfFalse Optional value to return when condition is false |
* @return mixed The value of returnIfTrue or returnIfFalse determined by condition |
*/ |
public static function STATEMENT_IF($condition = TRUE, $returnIfTrue = 0, $returnIfFalse = FALSE) { |
$condition = (is_null($condition)) ? TRUE : (boolean) PHPExcel_Calculation_Functions::flattenSingleValue($condition); |
$returnIfTrue = (is_null($returnIfTrue)) ? 0 : PHPExcel_Calculation_Functions::flattenSingleValue($returnIfTrue); |
$returnIfFalse = (is_null($returnIfFalse)) ? FALSE : PHPExcel_Calculation_Functions::flattenSingleValue($returnIfFalse); |
|
return ($condition) ? $returnIfTrue : $returnIfFalse; |
} // function STATEMENT_IF() |
|
|
/** |
* IFERROR |
* |
* Excel Function: |
* =IFERROR(testValue,errorpart) |
* |
* @access public |
* @category Logical Functions |
* @param mixed $testValue Value to check, is also the value returned when no error |
* @param mixed $errorpart Value to return when testValue is an error condition |
* @return mixed The value of errorpart or testValue determined by error condition |
*/ |
public static function IFERROR($testValue = '', $errorpart = '') { |
$testValue = (is_null($testValue)) ? '' : PHPExcel_Calculation_Functions::flattenSingleValue($testValue); |
$errorpart = (is_null($errorpart)) ? '' : PHPExcel_Calculation_Functions::flattenSingleValue($errorpart); |
|
return self::STATEMENT_IF(PHPExcel_Calculation_Functions::IS_ERROR($testValue), $errorpart, $testValue); |
} // function IFERROR() |
|
} // class PHPExcel_Calculation_Logical |