3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = "my.stuff"; $$var = "bla bla"; echo "$$var is set to " . $$var; echo $my.stuff;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
$my.stuff is set to bla bla Fatal error: Uncaught Error: Undefined constant "stuff" in /in/F0RWQ:6 Stack trace: #0 {main} thrown in /in/F0RWQ on line 6
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
$my.stuff is set to bla bla Warning: Use of undefined constant stuff - assumed 'stuff' (this will throw an Error in a future version of PHP) in /in/F0RWQ on line 6 Notice: Undefined variable: my in /in/F0RWQ on line 6 stuff
Output for 7.3.32 - 7.3.33
$my.stuff is set to bla bla Warning: Use of undefined constant stuff - assumed 'stuff' (this will throw an Error in a future version of PHP) in /in/F0RWQ on line 6 stuff
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
$my.stuff is set to bla bla Notice: Use of undefined constant stuff - assumed 'stuff' in /in/F0RWQ on line 6 Notice: Undefined variable: my in /in/F0RWQ on line 6 stuff

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