3v4l.org

run code in 500+ PHP versions simultaneously
<?php function myFunction($format, $timestamp){ echo $format."/"; } function _date($format, $timestamp = null){ $result = !isset($timestamp) ? date($format) : date($format, $timestamp); myFunction($format, $timestamp); return $result; } echo _date("Y-m-d");
Output for 5.6.38, 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Y-m-d/2018-11-07

preferences:
96.92 ms | 1444 KiB | 4 Q