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Editing: Util_Bus.php
<?php /** * File: Util_Bus.php * * @package W3TC */ namespace W3TC; /** * Class Util_Bus */ class Util_Bus { /** * Add W3TC action callback * * @param string $key Key. * @param mixed $callback Callback. * * @return void */ public static function add_ob_callback( $key, $callback ) { $GLOBALS['_w3tc_ob_callbacks'][ $key ] = $callback; } /** * Do W3TC action callbacks * * @param array $order Order. * @param mixed $value Value. * * @return mixed */ public static 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; } }
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