3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array( 'a' => 1, 'b' => 2 ); var_dump($a[null]); var_dump($a[null]== true);
based on 4HjUO
Output for 5.3.0 - 7.1.0
Notice: Undefined index: in /in/iqDWW on line 8 NULL Notice: Undefined index: in /in/iqDWW on line 9 bool(false)
Output for 4.3.0 - 5.2.17
Notice: Undefined index: in /in/iqDWW on line 8 NULL Notice: Undefined index: in /in/iqDWW on line 9 bool(false)