3v4l.org

run code in 500+ PHP versions simultaneously
<?php $messages = [ "a" => "use this ", "b" => "@ - ", "c" => "Don't" ]; asort ($messages); foreach( $messages as $message){ echo $message ." "; } echo PHP_EOL;
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
@ - Don't use this

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27.98 ms | 1137 KiB | 7 Q