3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $text = "http://www.google.com/\r\nhttp://www.google.com/\r\nhttp://www.google.com/"; echo preg_replace("/(http|ftp)+(s)?:(\/\/)((\w|\.|\-)+)(\/)?(\S)+/","foo",$text); //print_r($matches[0]);
Output for 4.3.0 - 5.0.5, 5.1.1 - 7.2.0
foo foo foo
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/TM3MI on line 5
Process exited with code 255.