3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $user_id=12; $app_id=299; echo $url_p = "user_id={$user_id}&app_id={$app_id}";
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
user_id=12&app_id=299