<?php 
namespace eMacros\Runtime\Filter; 
 
use eMacros\Runtime\GenericFunction; 
 
class FilterHasVar extends GenericFunction { 
    /** 
     * Filter types 
     * @var array 
     */ 
    public static $filter_types = array(INPUT_GET, INPUT_POST, INPUT_COOKIE, INPUT_SERVER, INPUT_ENV, INPUT_SESSION); 
     
    /** 
     * Checks whether a given index is defined on a global array 
     * Usage: (has-var POST 'message') 
     * Returns: boolean 
     * (non-PHPdoc) 
     * @see \eMacros\Runtime\GenericFunction::execute() 
     */ 
    public function execute(array $arguments) { 
        if (empty($arguments)) { 
            //no args 
            throw new \BadFunctionCallException("FilterHasVar: No parameters found."); 
        } 
         
        if (!isset($arguments[1])) { 
            //no filter defined 
            throw new \BadFunctionCallException("FilterHasVar: No filter has been defined."); 
        } 
         
        if (!in_array($arguments[0], self::$filter_types)) { 
            //unknown filter 
            throw new \InvalidArgumentException(sprintf("FilterHasVar: Filter type '%s' ", strval($arguments[0]))); 
        } 
         
        return filter_has_var(self::$filter_types[$arguments[0]], $arguments[1]); 
    } 
} 
?>
 
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