3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "Jumbo"; $a[] = 'l';
Output for 7.0.0 - 7.0.30, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Fatal error: Uncaught Error: [] operator not supported for strings in /in/PH05M:3 Stack trace: #0 {main} thrown in /in/PH05M on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30
Fatal error: [] operator not supported for strings in /in/PH05M on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: [] operator not supported for strings in /in/PH05M on line 3

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97.44 ms | 2414 KiB | 4 Q