3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str_arr = array(street => 'lalala', id => '1'); echo $str_arr[array_keys($str_arr)[3]];
Output for 7.2.0 - 7.3.0rc4
Warning: Use of undefined constant street - assumed 'street' (this will throw an Error in a future version of PHP) in /in/0ggMF on line 6 Warning: Use of undefined constant id - assumed 'id' (this will throw an Error in a future version of PHP) in /in/0ggMF on line 6 Notice: Undefined offset: 3 in /in/0ggMF on line 7 Notice: Undefined index: in /in/0ggMF on line 7
Output for 5.4.0 - 7.1.20
Notice: Use of undefined constant street - assumed 'street' in /in/0ggMF on line 6 Notice: Use of undefined constant id - assumed 'id' in /in/0ggMF on line 6 Notice: Undefined offset: 3 in /in/0ggMF on line 7 Notice: Undefined index: in /in/0ggMF on line 7
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ']' in /in/0ggMF on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ']' in /in/0ggMF on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `']'' in /in/0ggMF on line 7
Process exited with code 255.