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<?php abstract class Foo { abstract function bar(array $params = NULL); } class Moo extends Foo { public function bar(array $params) { echo count($params); }} $c = new Moo(); $c->bar(array(5)); ?>
Output for 5.4.0 - 5.4.43, 5.5.24 - 5.5.27, 5.6.7 - 5.6.11
Fatal error: Declaration of Moo::bar() must be compatible with Foo::bar(array $params = NULL) in /in/OCPIg on line 11
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Declaration of Moo::bar() must be compatible with that of Foo::bar() in /in/OCPIg on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/OCPIg on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CLASS in /in/OCPIg on line 2
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_CLASS in /in/OCPIg on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/OCPIg on line 2
Process exited with code 255.

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