3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "blah1;;blah2;;blah3"; $s = str_replace(';;',';',$s); echo $s;
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.2.19, 8.3.0 - 8.3.7
blah1;blah2;blah3
preferences:
185.56 ms | 404 KiB | 248 Q