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<?php function xyz($x) {} $r = new ReflectionFunction('xyz'); var_export($r->getParameters()[0]->getDefaultValue());
based on EtIso
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught ReflectionException: Internal error: Failed to retrieve the default value in /in/83JA2:5 Stack trace: #0 /in/83JA2(5): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/83JA2 on line 5
Process exited with code 255.
Output for 5.4.7 - 5.6.28
Fatal error: Uncaught exception 'ReflectionException' with message 'Internal error: Failed to retrieve the default value' in /in/83JA2:5 Stack trace: #0 /in/83JA2(5): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/83JA2 on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.6
Fatal error: Uncaught exception 'ReflectionException' with message 'Parameter is not optional' in /in/83JA2:5 Stack trace: #0 /in/83JA2(5): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/83JA2 on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/83JA2 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/83JA2 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/83JA2 on line 5
Process exited with code 255.