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<?php $ref = new ReflectionClass('ArrayObject'); foreach($ref->getMethod('__construct')->getParameters() as $param) { var_dump($param->getDefaultValue()); }
based on MfKsQ
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught ReflectionException: Cannot determine default value for internal functions in /in/vk6A4:5 Stack trace: #0 /in/vk6A4(5): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/vk6A4 on line 5
Process exited with code 255.
Output for 5.3.21 - 5.6.28
Fatal error: Uncaught exception 'ReflectionException' with message 'Cannot determine default value for internal functions' in /in/vk6A4:5 Stack trace: #0 /in/vk6A4(5): ReflectionParameter->getDefaultValue() #1 {main} thrown in /in/vk6A4 on line 5
Process exited with code 255.