- Output for 5.5.0 - 5.5.37, 5.6.0 - 5.6.8, 5.6.10 - 5.6.28, 7.0.1 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
- string(19) "2015-12-21_15-41-15"
- Output for 5.6.9, 7.0.0
- string(19) "2015-12-21_15-41-16"
<?php
date_default_timezone_set('Asia/Shanghai');
$date = date('Y-m-d_H-i-s', time());
var_dump($date);