3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(callable $bar = false) {}
Output for 5.4.0 - 5.4.20
Fatal error: Default value for parameters with callable type hint can only be NULL in /in/CAVkt on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Fatal error: Default value for parameters with a class type hint can only be NULL in /in/CAVkt on line 3
Process exited with code 255.
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168.01 ms | 1399 KiB | 56 Q