3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(string $bar = 0) {}
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.41, 5.5.24 - 5.5.25, 5.6.8 - 5.6.9
Fatal error: Default value for parameters with a class type hint can only be NULL in /in/2qT7B on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/2qT7B on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/2qT7B on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/2qT7B on line 3
Process exited with code 255.

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