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Path : /home/admin/public_html/old/board/libraries/pattemplate/patTemplate/Modifier/

Current File : /home/admin/public_html/old/board/libraries/pattemplate/patTemplate/Modifier/Expression.php

<?PHP
/**
 * patTemplate modfifier Expression
 *
 * $Id: Expression.php 10381 2008-06-01 03:35:53Z pasamio $
 *
 * @package		patTemplate
 * @subpackage	Modifiers
 * @author		Stephan Schmidt <schst@php.net>
 */

// Check to ensure this file is within the rest of the framework
defined('JPATH_BASE') or die();

/**
 * patTemplate modfifier Expression
 *
 * Evaluates an expression and returns one of
 * the defined values for true and false.
 *
 * Possible attributes are:
 * - expression (string)
 * - true (string)
 * - false (string)
 *
 * @package		patTemplate
 * @subpackage	Modifiers
 * @author		Stephan Schmidt <schst@php.net>
 * @link		http://www.php.net/manual/en/function.wordwrap.php
 */
class patTemplate_Modifier_Expression extends patTemplate_Modifier
{
	/**
	* modify the value
	*
	* @access	public
	* @param	string		value
	* @return	string		modified value
	*/
	function modify( $value, $params = array() )
	{
		/*
		 * true and false
		 */
		if( !isset( $params['true'] ) )
			$params['true']	=	'true';
		if( !isset( $params['false'] ) )
			$params['false']=	'false';

		/*
		 * replace the value in the expression
		 */
		$params['expression'] = str_replace( '$self', "'$value'", $params['expression'] );

		@eval( '$result = '.$params['expression'].';' );

		if ($result === true) {
			return str_replace( '$self', $value, $params['true'] );
		}
		return str_replace( '$self', $value, $params['false'] );
	}
}
?>

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