3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo preg_replace_callback( '#\d+#', 'incr', '123abc456def789' ); function incr($args){ return 1 + (int)$args[0]; }
based on SBM22
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
124abc457def790