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run code in 300+ PHP versions simultaneously
<?php $a = array('ttt' => 45); $s = 'lorem'; var_dump(isset($a['ttt']), isset($s['ttt']), $a['ttt'], $s['ttt']);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/nHF3t:4 Stack trace: #0 {main} thrown in /in/nHF3t on line 4
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Illegal string offset 'ttt' in /in/nHF3t on line 4 bool(true) bool(false) int(45) string(1) "l"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
bool(true) bool(true) int(45) string(1) "l"
Output for 5.0.0 - 5.0.2
bool(true) bool(false) int(45) string(1) "l"

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274.68 ms | 401 KiB | 384 Q