3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php print_r( json_encode( json_decode( "{}", true), true).length ); ?>
based on 1eK9g
Output for 7.2.0
Warning: Use of undefined constant length - assumed 'length' (this will throw an Error in a future version of PHP) in /in/OoqQH on line 3 []length
Output for 5.4.0 - 7.1.10
Notice: Use of undefined constant length - assumed 'length' in /in/OoqQH on line 3 []length