3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php parse_str(array(), $foo); var_dump($foo);
based on bgFqd
Output for 5.3.0 - 7.1.0
Warning: parse_str() expects parameter 1 to be string, array given in /in/2853A on line 2 NULL
Output for 4.3.0 - 5.2.17
Notice: Array to string conversion in /in/2853A on line 2 array(1) { ["Array"]=> string(0) "" }