wp_ob_end_flush_all() │ WP 2.2.0

Flushes all output buffers for PHP 5.2.

Make sure all output buffers are flushed before our singletons are destroyed.

No Hooks.

Return

null. Nothing (null).

Usage

wp_ob_end_flush_all();

Changelog

Since 2.2.0 Introduced.

wp_ob_end_flush_all() code WP 6.5.2

wp-includes/functions.php 
function wp_ob_end_flush_all() {
	$levels = ob_get_level();
	for ( $i = 0; $i < $levels; $i++ ) {
		ob_end_flush();
	}
}