コード例 #1
0
ファイル: txplib_misc.php プロジェクト: bgarrels/textpattern
/**
 * Call an event's callback with two optional byref parameters
 * @param string $event
 * @param string $step
 * @param boolean $pre 0|1
 * @param mixed $data optional arguments for event handlers
 * @param mixed $options optional arguments for event handlers
 * @return array collection of return values from event handlers
 * @since 4.5.0
 */
function callback_event_ref($event, $step = '', $pre = 0, &$data = null, &$options = null)
{
    global $plugin_callback, $production_status;
    if (!is_array($plugin_callback)) {
        return array();
    }
    $return_value = array();
    foreach ($plugin_callback as $c) {
        if ($c['event'] == $event and (empty($c['step']) or $c['step'] == $step) and $c['pre'] == $pre) {
            if (is_callable($c['function'])) {
                // cannot call event handler via call_user_func() as this would dereference all arguments.
                // side effect: callback handler *must* be ordinary function, *must not* be class method in PHP <5.4 (@see https://bugs.php.net/bug.php?id=47160)
                $return_value[] = $c['function']($event, $step, $data, $options);
            } elseif ($production_status == 'debug') {
                trigger_error(gTxt('unknown_callback_function', array('{function}' => callback_tostring($c['function']))), E_USER_WARNING);
            }
        }
    }
    return $return_value;
}
コード例 #2
0
ファイル: txplib_misc.php プロジェクト: hcgtv/textpattern
/**
 * Lists handlers attached to an event.
 *
 * @param   string     $event     The callback event
 * @param   string     $step      The callback step
 * @param   bool       $pre       The position
 * @param   bool       $as_string Return callables in string representation
 * @return  array|bool An array of handlers, or FALSE
 * @since   4.6.0
 * @package Callback
 * @example
 * if ($handlers = callback_handlers('article_saved'))
 * {
 *     print_r($handlers);
 * }
 */
function callback_handlers($event, $step = '', $pre = 0, $as_string = true)
{
    global $plugin_callback;
    $out = array();
    foreach ((array) $plugin_callback as $c) {
        if ($c['event'] == $event && (!$c['step'] || $c['step'] == $step) && $c['pre'] == $pre) {
            if ($as_string) {
                $out[] = callback_tostring($c['function']);
            } else {
                $out[] = $c['function'];
            }
        }
    }
    if ($out) {
        return $out;
    }
    return false;
}