3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $this->Id='true test'; $el = 'Id'; echo $this->$el;
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Using $this when not in object context in /in/sJ9Q2:3 Stack trace: #0 {main} thrown in /in/sJ9Q2 on line 3
Process exited with code 255.
Output for 5.0.0 - 5.6.28
Fatal error: Using $this when not in object context in /in/sJ9Q2 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.4.9
true test