3v4l.org

run code in 300+ PHP versions simultaneously
<?php $user=NULL; $p=array(""); var_dump($user['password']==$p); var_dump(True==$p);
Output for 8.3.0 - 8.3.6
Warning: Trying to access array offset on null in /in/iRH4t on line 4 bool(false) bool(true)
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Trying to access array offset on value of type null in /in/iRH4t on line 4 bool(false) bool(true)
Output for 7.4.0 - 7.4.33
Notice: Trying to access array offset on value of type null in /in/iRH4t on line 4 bool(false) bool(true)
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
bool(false) bool(true)
preferences:
262.72 ms | 403 KiB | 333 Q