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run code in 150+ php & hhvm versions
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<?php set_error_handler(function () {}); class SomeClass {} function test(SomeClass $instance) { var_dump($instance); } test(1); test('Really?'); test(imagecreate(10, 10)); test(9.999);
based on HDBt9
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught TypeError: Argument 1 passed to test() must be an instance of SomeClass, integer given, called in /in/Kh06u on line 9 and defined in /in/Kh06u:7 Stack trace: #0 /in/Kh06u(9): test(1) #1 {main} thrown in /in/Kh06u on line 7
Process exited with code 255.
Output for hhvm-3.12.0
int(1) string(7) "Really?" resource(4) of type (gd) float(9.999)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
int(1) string(7) "Really?" Fatal error: Call to undefined function imagecreate() in /in/Kh06u on line 11
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/Kh06u 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_FUNCTION, expecting ')' in /in/Kh06u on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/Kh06u on line 3
Process exited with code 255.