3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = new stdClass; $a->a = new stdClass; $a->a->a = new stdClass; $a->a->a->a = 'a'; $a = [ 'a' => [ 'a' => [ 'a' => 'a' ] ] ]; $b = & $a['a']['a']; var_dump($b); var_dump($b['a'] = 'c'); var_dump($a);
Output for 5.4.0 - 7.1.0
array(1) { ["a"]=> string(1) "a" } string(1) "c" array(1) { ["a"]=> array(1) { ["a"]=> &array(1) { ["a"]=> string(1) "c" } } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ejq3Q on line 10
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/ejq3Q on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ejq3Q on line 10
Process exited with code 255.