3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php //echo rawurlencode('{"5":"128","p":1}'); echo rawurlencode('{"5":"128"}');
Output for 4.3.0 - 5.6.21, hhvm-3.12.0, 7.0.0 - 7.1.0
%7B%225%22%3A%22128%22%7D
Output for hhvm-3.10.0

Process exited with code 153.