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<?php class TestClass{ public $a = []; public function __set($name, $value) { $a[$name] = $value; } public function __get($name) { return $a[$name]; } public function test() { return null; } } $test = new TestClass(); $test->a = new TestClass(); var_dump(isset($test->a->test()));
Output for 5.4.0 - 5.4.34
Fatal error: Can't use method return value in write context in /in/JN3nA on line 25
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
Parse error: syntax error, unexpected '[' in /in/JN3nA on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/JN3nA on line 4
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/JN3nA on line 4
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_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JN3nA on line 4
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/JN3nA on line 4
Process exited with code 255.

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