3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ​ { function ᠎($᠎){ return strtr($᠎, 'abc ​fghijklmnopqrstuvwxyzabcdefghijk mn pq stuv xyzABCDEFGIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'); } } $᠎=new ​; echo $᠎->᠎(' ​         ');

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36.24 ms | 402 KiB | 5 Q