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   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  
  53  }
  54  
  55  ?>