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run code in 150+ php & hhvm versions
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<?php class Animal { public function __call($name, $args) { if (preg_match('/^is([A-Z].+)/', $name, $matches)) { return $matches[1] === get_called_class(); } } } class Cat extends Animal { } class Dog extends Animal { } $brian = new Dog(); printf("Brian %s a dog.\n", $brian->isDog() ? "is" : "is not" ); printf("Brian %s a cat.\n", $brian->isCat() ? "is" : "is not" );
Output for 5.3.0 - 7.1.0
Brian is a dog. Brian is not a cat.
Output for 5.0.0 - 5.2.17
Fatal error: Call to undefined function get_called_class() in /in/nce8o on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/nce8o on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/nce8o on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/nce8o on line 5
Process exited with code 255.