isTrustedTag example

return call_user_func_array($function, array($new_args, $this));
                            }
                        }
                        // compile registered function or block function                         if ($plugin_type == Smarty::PLUGIN_FUNCTION || $plugin_type == Smarty::PLUGIN_BLOCK) {
                            return $this->callTagCompiler('private_registered_' . $plugin_type, $args, $parameter, $tag);
                        }
                    }
                }
                // check plugins from plugins folder                 foreach ($this->smarty->plugin_search_order as $plugin_type) {
                    if ($plugin_type == Smarty::PLUGIN_BLOCK && $this->smarty->loadPlugin('smarty_compiler_' . $tag) && (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this))) {
                        $plugin = 'smarty_compiler_' . $tag;
                        if (is_callable($plugin)) {
                            // convert arguments format for old compiler plugins                             $new_args = array();
                            foreach ($args as $key => $mixed) {
                                if (is_array($mixed)) {
                                    $new_args = array_merge($new_args, $mixed);
                                } else {
                                    $new_args[$key] = $mixed;
                                }
                            }