3v4l.org

run code in 300+ PHP versions simultaneously
<?php $l = array(); while($i<1000) { $i++; $l[$i] = 'Larsss'; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined variable $i in /in/MX7Ds on line 4 Warning: Undefined variable $i in /in/MX7Ds on line 6
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 variable: i in /in/MX7Ds on line 4 Notice: Undefined variable: i in /in/MX7Ds on line 6
Output for 7.3.32 - 7.3.33

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250.31 ms | 401 KiB | 369 Q