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run code in 300+ PHP versions simultaneously
<?php $test = []; var_dump($test['key']);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined array key "key" in /in/MMbEZ on line 5 NULL
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: key in /in/MMbEZ on line 5 NULL
Output for 7.3.32 - 7.3.33
NULL
preferences:
244.89 ms | 401 KiB | 376 Q