3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $postal_code_to_check = substr('a0p1e0', 0, 3); $patterns = array( '[A]{1}[0]{1}[P-Z]{1}', '[A]{1}[2]{1}[V]{1}', '[G]{1}[0]{1}[G]{1}', '[G]{1}[4]{1}[T]{1}', '[R]{1}[0]{1}[B]{1}', ); $regex = "/^(" . implode('|', $patterns) . ")$/i"; if (preg_match($regex, $postal_code_to_check)) { print_f('Matched!'); }
based on j61RY
Output for 7.0.0 - 7.3.0rc4
Fatal error: Uncaught Error: Call to undefined function print_f() in /in/EdV7b:12 Stack trace: #0 {main} thrown in /in/EdV7b on line 12
Process exited with code 255.
Output for 5.3.20 - 5.6.28
Fatal error: Call to undefined function print_f() in /in/EdV7b on line 12
Process exited with code 255.