3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a' => 1, 'b' => 2, 'c' => 3, 'd' => 4, 'e' => 5); if(null !== JSON_PRETTY_PRINT && defined(JSON_PRETTY_PRINT)){ echo json_encode($arr, JSON_PRETTY_PRINT); echo JSON_PRETTY_PRINT; } ?>

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37.69 ms | 402 KiB | 5 Q