Source for file core.load_plugins.php
Documentation is available at core.load_plugins.php
foreach ($params['plugins'] as $_plugin_info) {
list ($_type, $_name, $_tpl_file, $_tpl_line, $_delayed_loading) = $_plugin_info;
$_plugin = &$smarty->_plugins[$_type][$_name];
* We do not load plugin more than once for each instance of Smarty.
* The following code checks for that. The plugin can also be
* registered dynamically at runtime, in which case template file
* and line number will be unknown, so we fill them in.
* The final element of the info array is a flag that indicates
* whether the dynamically registered plugin function has been
* checked for existence yet or not.
if (empty($_plugin[3])) {
$smarty->_trigger_fatal_error("[plugin] $_type '$_name' is not implemented", $_tpl_file, $_tpl_line, __FILE__ , __LINE__ );
$_plugin[1] = $_tpl_file;
$_plugin[2] = $_tpl_line;
if (!isset ($_plugin[4])) $_plugin[4] = true; /* cacheable */
} else if ($_type == 'insert') {
* For backwards compatibility, we check for insert functions in
* the symbol table before trying to load them as a plugin.
$_plugin_func = 'insert_' . $_name;
$_plugin = array($_plugin_func, $_tpl_file, $_tpl_line, true, false);
$_plugin_file = $smarty->_get_plugin_filepath($_type, $_name);
if (! $_found = ($_plugin_file != false)) {
$_message = "could not load plugin file '$_type.$_name.php'\n";
* If plugin file is found, it -must- provide the properly named
* plugin function. In case it doesn't, simply output the error and
* do not fall back on any other method.
include_once $_plugin_file;
$_plugin_func = 'smarty_' . $_type . '_' . $_name;
$smarty->_trigger_fatal_error("[plugin] function $_plugin_func() not found in $_plugin_file", $_tpl_file, $_tpl_line, __FILE__ , __LINE__ );
* In case of insert plugins, their code may be loaded later via
else if ($_type == 'insert' && $_delayed_loading) {
$_plugin_func = 'smarty_' . $_type . '_' . $_name;
* Plugin specific processing and error checking.
if ($_type == 'modifier') {
* In case modifier falls back on using PHP functions
* directly, we only allow those specified in the security
if ($smarty->security && !in_array($_name, $smarty->security_settings['MODIFIER_FUNCS'])) {
$_message = "(secure mode) modifier '$_name' is not allowed";
$_message = "modifier '$_name' is not implemented";
} else if ($_type == 'function') {
* This is a catch-all situation.
$_message = "unknown tag - '$_name'";
$smarty->_plugins[$_type][$_name] = array($_plugin_func, $_tpl_file, $_tpl_line, true, true);
$smarty->_trigger_fatal_error('[plugin] ' . $_message, $_tpl_file, $_tpl_line, __FILE__ , __LINE__ );
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