library/Smarty/libs/sysplugins/smarty_internal_function_call_handler.php

   1 <?php
   2 /**
   3  * Smarty Internal Plugin Function Call Handler
   4  *
   5  * @package    Smarty
   6  * @subpackage PluginsInternal
   7  * @author     Uwe Tews
   8  */
   9
  10 /**
  11  * This class does call function defined with the {function} tag
  12  *
  13  * @package    Smarty
  14  * @subpackage PluginsInternal
  15  */
  16 class Smarty_Internal_Function_Call_Handler
  17 {
  18     /**
  19      * This function handles calls to template functions defined by {function}
  20      * It does create a PHP function at the first call
  21      *
  22      * @param string                   $_name     template function name
  23      * @param Smarty_Internal_Template $_template template object
  24      * @param array                    $_params   Smarty variables passed as call parameter
  25      * @param string                   $_hash     nocache hash value
  26      * @param bool                     $_nocache  nocache flag
  27      */
  28     public static function call($_name, Smarty_Internal_Template $_template, $_params, $_hash, $_nocache)
  29     {
  30         if ($_nocache) {
  31             $_function = "smarty_template_function_{$_name}_nocache";
  32         } else {
  33             $_function = "smarty_template_function_{$_hash}_{$_name}";
  34         }
  35         if (!is_callable($_function)) {
  36             $_code = "function {$_function}(\$_smarty_tpl,\$params) {
  37     \$saved_tpl_vars = \$_smarty_tpl->tpl_vars;
  38     foreach (\$_smarty_tpl->smarty->template_functions['{$_name}']['parameter'] as \$key => \$value) {\$_smarty_tpl->tpl_vars[\$key] = new Smarty_variable(\$value);};
  39     foreach (\$params as \$key => \$value) {\$_smarty_tpl->tpl_vars[\$key] = new Smarty_variable(\$value);}?>";
  40             if ($_nocache) {
  41                 $_code .= preg_replace(array("!<\?php echo \\'/\*%%SmartyNocache:{$_template->smarty->template_functions[$_name]['nocache_hash']}%%\*/|/\*/%%SmartyNocache:{$_template->smarty->template_functions[$_name]['nocache_hash']}%%\*/\\';\?>!",
  42                                              "!\\\'!"), array('', "'"), $_template->smarty->template_functions[$_name]['compiled']);
  43                 $_template->smarty->template_functions[$_name]['called_nocache'] = true;
  44             } else {
  45                 $_code .= preg_replace("/{$_template->smarty->template_functions[$_name]['nocache_hash']}/", $_template->properties['nocache_hash'], $_template->smarty->template_functions[$_name]['compiled']);
  46             }
  47             $_code .= "<?php \$_smarty_tpl->tpl_vars = \$saved_tpl_vars;}";
  48             eval($_code);
  49         }
  50         $_function($_template, $_params);
  51     }
  52 }