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File: libs/smarty/plugins/shared.literal_compiler_param.php

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File: libs/smarty/plugins/shared.literal_compiler_param.php
Role: Auxiliary script
Content type: text/plain
Description: Auxiliary script
Class: MVC 4 Dummies
Web development PHP MVC framework
Author: By
Last change:
Date: 7 years ago
Size: 1,010 bytes
 

Contents

Class file image Download
<?php
/**
 * Smarty plugin
 *
 * @package Smarty
 * @subpackage PluginsShared
 */

/**
 * evaluate compiler parameter
 *
 * @param array $params parameter array as given to the compiler function
 * @param integer $index array index of the parameter to convert
 * @param mixed $default value to be returned if the parameter is not present
 *
 * @return mixed evaluated value of parameter or $default
 * @throws SmartyException if parameter is not a literal (but an expression, variable, …)
 * @author Rodney Rehm
 */
function smarty_literal_compiler_param($params, $index, $default = null)
{
   
// not set, go default
   
if (!isset($params[$index])) {
        return
$default;
    }
   
// test if param is a literal
   
if (!preg_match('/^([\'"]?)[a-zA-Z0-9-]+(\\1)$/', $params[$index])) {
        throw new
SmartyException('$param[' . $index . '] is not a literal and is thus not evaluatable at compile time');
    }

   
$t = null;
    eval(
"\$t = " . $params[$index] . ";");

    return
$t;
}

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