3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php if(!function_exists('json_decode')) { return; } var_dump(json_decode('{ "a": 1, // Ciao! "b":2 }'));
Output for 5.2.0 - 7.1.0
NULL
Output for 4.3.0 - 5.1.6