3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo preg_replace("#(\p{P}|\p{C}|\p{S}|\p{Z})+#u", "_", "ollá hellos world");
Output for 4.4.0 - 4.4.9, 5.0.5 - 7.2.0
ollá_hellos_world
Output for 4.3.11, 5.0.0 - 5.0.4
Warning: preg_replace(): Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 2 in /in/QrpOk on line 3
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: PCRE does not support \L, \l, \N, \P, \p, \U, \u, or \X at offset 2 in /in/QrpOk on line 3