3v4l.org

run code in 500+ PHP versions simultaneously
<?php $a = false; var_dump($a['abc']); var_dump($a['abc'] ?? '');
Output for 7.3.0 - 7.3.33, 7.4.26
NULL string(0) ""
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34
Warning: Trying to access array offset on value of type bool in /in/4JIAY on line 5 NULL string(0) ""
Output for 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Trying to access array offset on value of type bool in /in/4JIAY on line 5 NULL string(0) ""
Output for 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Warning: Trying to access array offset on false in /in/4JIAY on line 5 NULL string(0) ""
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40.75 ms | 1153 KiB | 16 Q