1<?php 2 3/** 4 * Smarty Method UnregisterFilter 5 * 6 * Smarty::unregisterFilter() method 7 * 8 * @package Smarty 9 * @subpackage PluginsInternal 10 * @author Uwe Tews 11 */ 12class Smarty_Internal_Method_UnregisterFilter extends Smarty_Internal_Method_RegisterFilter 13{ 14 /** 15 * Unregisters a filter function 16 * 17 * @api Smarty::unregisterFilter() 18 * 19 * @link http://www.smarty.net/docs/en/api.unregister.filter.tpl 20 * 21 * @param \Smarty_Internal_TemplateBase|\Smarty_Internal_Template|\Smarty $obj 22 * @param string $type filter type 23 * @param callback|string $callback 24 * 25 * @return \Smarty|\Smarty_Internal_Template 26 * @throws \SmartyException 27 */ 28 public function unregisterFilter(Smarty_Internal_TemplateBase $obj, $type, $callback) 29 { 30 $smarty = $obj->_getSmartyObj(); 31 $this->_checkFilterType($type); 32 if (isset($smarty->registered_filters[ $type ])) { 33 $name = is_string($callback) ? $callback : $this->_getFilterName($callback); 34 if (isset($smarty->registered_filters[ $type ][ $name ])) { 35 unset($smarty->registered_filters[ $type ][ $name ]); 36 if (empty($smarty->registered_filters[ $type ])) { 37 unset($smarty->registered_filters[ $type ]); 38 } 39 } 40 } 41 return $obj; 42 } 43} 44