3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(array("hallo" => "sauber")); echo $arr[1]["hallo"];
Output for 8.3.0 - 8.3.4
Warning: Undefined array key 1 in /in/lYFou on line 5 Warning: Trying to access array offset on null in /in/lYFou on line 5
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17
Warning: Undefined array key 1 in /in/lYFou on line 5 Warning: Trying to access array offset on value of type null in /in/lYFou on line 5
Output for 7.4.0 - 7.4.33
Notice: Undefined offset: 1 in /in/lYFou on line 5 Notice: Trying to access array offset on value of type null in /in/lYFou on line 5
Output for 7.3.32 - 7.3.33
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31
Notice: Undefined offset: 1 in /in/lYFou on line 5

preferences:
249.76 ms | 403 KiB | 316 Q