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<?php
namespace W3TC;
class Util_Bus {
/**
* Add W3TC action callback
*
* @param string $key
* @param mixed $callback
* @return void
*/
static public function add_ob_callback( $key, $callback ) {
$GLOBALS['_w3tc_ob_callbacks'][$key] = $callback;
}
static public function do_ob_callbacks( $order, $value ) {
foreach ( $order as $key ) {
if ( isset( $GLOBALS['_w3tc_ob_callbacks'][$key] ) ) {
$callback = $GLOBALS['_w3tc_ob_callbacks'][$key];
if ( is_callable( $callback ) ) {
$value = call_user_func( $callback, $value );
}
}
}
return $value;
}
}