3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "####KELLY##### and ###ANOTHER###### not ####foo#### but: ###SHARE###MIDDLE###HASHES### ?"; echo $str . "\n"; echo preg_replace('/(?:#{3}|\G(?!^))\K[A-Z](?=[A-Z]*#{3})/', '#', $str);

This is an error 500

Value for `_results` contains invalid data `array`


preferences:
134.84 ms | 2039 KiB | 11 Q