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run code in 300+ PHP versions simultaneously
<?php $string = 'this is a string'; var_dump($string['check']); var_dump(isset($string['check'])); var_dump(isset($string['check'][0]));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/5GGYm:4 Stack trace: #0 {main} thrown in /in/5GGYm on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 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 'check' in /in/5GGYm on line 4 string(1) "t" bool(false) bool(false)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Warning: Illegal string offset 'check' in /in/5GGYm on line 4 string(1) "t" bool(false) bool(true)
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
string(1) "t" bool(true) bool(false)
Output for 5.0.0 - 5.0.2
string(1) "t" bool(false) bool(false)

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105.07 ms | 411 KiB | 5 Q