3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $title = "<b>Bold Title Here</b>"; $tab_id = strip_tags( $title ); $tab_id = preg_replace('~[^\p{L}\p{N}]++~u', ' ', $tab_id ); echo $tab_id;
based on UM4Um
Output for 4.4.0 - 4.4.9, 5.0.5 - 7.2.0
Bold Title Here
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 3 in /in/k07Vr on line 5
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 3 in /in/k07Vr on line 5