3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php session_start(); $_SESSION['acc'] = ['foo' => 'bar']; $_SESSION['foo'] = 'baz'; var_dump($_SESSION['acc']['foo']);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(3) "bar"
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/25OM0 on line 5
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 '[' in /in/25OM0 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/25OM0 on line 5
Process exited with code 255.