private static function set_filter_callbacks( $filter, $callbacks ) {
		global $wp_filter;

		if ( ! isset( $wp_filter[ $filter ] ) && class_exists( 'WP_Hook' ) ) {
			$wp_filter[ $filter ] = new \WP_Hook;
		}

		if ( is_a( $wp_filter[ $filter ], 'WP_Hook' ) ) {
			$wp_filter[ $filter ]->callbacks = $callbacks;
		} else {
			$wp_filter[ $filter ] = $callbacks;
		}
	}
private static function set_filter_callbacks( $filter, $callbacks ) {
		global $wp_filter;

		if ( ! isset( $wp_filter[ $filter ] ) && class_exists( 'WP_Hook' ) ) {
			$wp_filter[ $filter ] = new \WP_Hook;
		}

		if ( is_a( $wp_filter[ $filter ], 'WP_Hook' ) ) {
			$wp_filter[ $filter ]->callbacks = $callbacks;
		} else {
			$wp_filter[ $filter ] = $callbacks;
		}
	}
private static function set_filter_callbacks ( $ filter , $ callbacks ) { global $ wp_filter ; if ( ! isset ( $ wp_filter [ $ filter ] ) && class_exists ( 'WP_Hook' ) ) { $ wp_filter [ $ filter ] = new \ WP_Hook ; } if ( is_a ( $ wp_filter [ $ filter ] , 'WP_Hook' ) ) { $ wp_filter [ $ filter ] -> callbacks = $ callbacks ; } else { $ wp_filter [ $ filter ] = $ callbacks ; } }
Set the callbacks for a given filter

@param string $filter
@param mixed $callbacks
Set the callbacks for a given filter