3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php parse_str('a[]', $out); var_dump($out);
Output for 4.3.0 - 5.1.2, 5.1.4 - 7.1.0
array(1) { ["a"]=> array(1) { [0]=> string(0) "" } }
Output for 5.1.3
array(2) { ["a"]=> array(1) { [0]=> string(0) "" } ["_"]=> string(0) "" }