3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; var_dump(isset($a->a[0][1]));
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
bool(false)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.5
Notice: Trying to get property of non-object in /in/6UaCH on line 3 bool(false)

preferences:
282.39 ms | 401 KiB | 336 Q