3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() <= "7.0.0" or die(); $a='apple'; $b='a'; $c='b'; $d='c'; echo "$$$$d\n"; // $$$c $obj = new StdClass; $obj->apple = 'sauce'; echo $obj->$$$$d; // sauce

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32.66 ms | 402 KiB | 5 Q