3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $timestamp = strtotime("Not Good"); echo $timestamp . "\n"; echo date('Y-m-d', $timestamp) . "\n"; echo date('F',$timestamp) . "\n";
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1970-01-01 January
Output for 4.3.0 - 5.0.5
-1 1970-01-01 January