3v4l.org

run code in 300+ PHP versions simultaneously
<?php print(preg_replace('/(?<!ක)/u', '*', 'ම') . "\n");
Output for 5.5.27 - 5.5.38, 5.6.11 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
*ම*
Output for 4.3.0 - 4.3.4, 5.2.9 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.26, 5.6.0 - 5.6.10
*�*�*�*
Output for 5.2.0 - 5.2.8
Output for 4.3.5 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
*ම
preferences:
258.24 ms | 402 KiB | 402 Q