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run code in 200+ php & hhvm versions
<?php echo (new ReflectionMethod('DateTimeImmutable', '__construct'))->getParameters()[1]->getName();
based on LnRDZ
Output for 7.1.17 - 7.1.25, 7.2.5 - 7.3.0
timezone
Output for 5.5.0 - 7.1.16, 7.2.0 - 7.2.4
object
Output for 5.4.0 - 5.4.45
Fatal error: Uncaught exception 'ReflectionException' with message 'Class DateTimeImmutable does not exist' in /in/6Wc78:3 Stack trace: #0 /in/6Wc78(3): ReflectionMethod->__construct('DateTimeImmutab...', '__construct') #1 {main} thrown in /in/6Wc78 on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';' in /in/6Wc78 on line 3
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 T_OBJECT_OPERATOR, expecting ',' or ';' in /in/6Wc78 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/6Wc78 on line 3
Process exited with code 255.