3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = ' U \yen X \checkmark r \circledR m \maltese p \ulcorner q \urcorner x \llcorner y \lrcorner 99K \dashrightarrow L99 \dashleftarrow \rightleftharpoons \ \angle ~ \hbar 0 \mho < \sqsubset = \sqsupset '; $x = array_filter(preg_split('/\s+/', $x)); usort($x, function ($a, $b) { return strcmp(strtolower($a), strtolower($b)); }); foreach ($x as $xx) { echo $xx, "\n"; }
based on WSVBa
Output for 7.0.0 - 7.2.0
99K < = \ \angle \checkmark \circledR \dashleftarrow \dashrightarrow \hbar \llcorner \lrcorner \maltese \mho \rightleftharpoons \sqsubset \sqsupset \ulcorner \urcorner \yen L99 m p q r U x X y ~
Output for 5.3.21 - 5.6.28
99K < = \ \angle \checkmark \circledR \dashleftarrow \dashrightarrow \hbar \llcorner \lrcorner \maltese \mho \rightleftharpoons \sqsubset \sqsupset \ulcorner \urcorner \yen L99 m p q r U X x y ~