3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = true; var_dump( $data['width'] );
Output for 8.3.0 - 8.3.7
Warning: Trying to access array offset on true in /in/FBhtS on line 4 NULL
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19
Warning: Trying to access array offset on value of type bool in /in/FBhtS on line 4 NULL
Output for 7.4.0 - 7.4.33
Notice: Trying to access array offset on value of type bool in /in/FBhtS on line 4 NULL
Output for 4.3.0 - 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 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33
NULL

preferences:
220.89 ms | 405 KiB | 470 Q