www.gusucode.com > serendipity PHP博客系统 v2.3.1PHP源码程序 > serendipity PHP博客系统 v2.3.1/Serendipity2.3.1/Serendipity-2.3.1/bundled-libs/Smarty/libs/plugins/modifiercompiler.default.php
<?php /** * Smarty plugin * * @package Smarty * @subpackage PluginsModifierCompiler */ /** * Smarty default modifier plugin * Type: modifier * Name: default * Purpose: designate default value for empty variables * * @link http://www.smarty.net/manual/en/language.modifier.default.php default (Smarty online manual) * @author Uwe Tews * * @param array $params parameters * * @return string with compiled code */ function smarty_modifiercompiler_default($params) { $output = $params[ 0 ]; if (!isset($params[ 1 ])) { $params[ 1 ] = "''"; } array_shift($params); foreach ($params as $param) { $output = '(($tmp = @' . $output . ')===null||$tmp===\'\' ? ' . $param . ' : $tmp)'; } return $output; }