3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $pattern = '/\b' . preg_quote('Ro\(M\)') . '\b/ui'; $sample = 'Ro(M)'; echo (int)preg_match( $pattern, $sample, $matches).PHP_EOL; print_r($matches);
based on Rscr3
Output for 4.3.10 - 4.4.9, 5.0.2 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
0 Array ( )
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/guBhr on line 4 0PHP_EOLArray ( )