3v4l.org

run code in 300+ PHP versions simultaneously
<?php $rec['birthday']= ""; if(isset($rec['birthday']) && $rec['birthday'] != "") { $dates = explode("/",$rec['birthday']); if(!isset($dates[2])) $dates[2] = "0000"; $newdate = $dates[0]."-".$dates[1]."-".$dates[2]; echo $newdate; } else { $newdate=""; } ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6

preferences:
246.79 ms | 406 KiB | 370 Q