3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $_content = '$1$2'; $_content = preg_replace('#.*#', '<span name="iframe_stretch">$1</span>', $_content); echo $_content; //var_dump($matches);
based on gZmgn
Output for 4.3.0 - 5.0.5, 5.1.1 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<span name="iframe_stretch"></span><span name="iframe_stretch"></span>
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/6l6Up on line 5
Process exited with code 255.