| public static register ( Callable $fn, string $type, string $hook, integer $priority = 8 ) | ||
| $fn | Callable | A reference to the function to register by string or array(object, string) |
| $type | string | Usually either 'filter' or 'action' depending on the hook type. |
| $hook | string | The plugin hook to register |
| $priority | integer | An optional execution priority, from 1-16. The lower the priority, the earlier the function will execute in the chain. Default value = 8. |
public static function register($fn, $type, $hook, $priority = 8)
{
// add the plugin function to the appropriate array
$index = array($type, $hook, $priority);
$ref =& self::$hooks;
foreach ($index as $bit) {
if (!isset($ref["{$bit}"])) {
$ref["{$bit}"] = array();
}
$ref =& $ref["{$bit}"];
}
$ref[] = $fn;
ksort(self::$hooks[$type][$hook]);
}