--TEST-- Test return type and value, as well as basic behaviour, of ob_get_clean() --FILE-- <?php /* * proto bool ob_get_clean(void) * Function is implemented in main/output.c */ var_dump(ob_get_clean()); ob_start(); echo "Hello World"; var_dump(ob_get_clean()); ?> --EXPECTF-- bool(false) string(11) "Hello World"