3v4l.org

run code in 300+ PHP versions simultaneously
<?php $wp = create_function('$a',strrev(';)a$(lave')); $wp('echo "foo";'); ?>
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
Fatal error: Uncaught Error: Call to undefined function create_function() in /in/p42uh:1 Stack trace: #0 {main} thrown in /in/p42uh on line 1
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
Deprecated: Function create_function() is deprecated in /in/p42uh on line 1 foo
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.3.32 - 7.3.33
foo

preferences:
261.78 ms | 404 KiB | 449 Q