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<?php class Test { public static function get($what) { return constant("static::" . $what); } } class Test2 extends Test { const OMG = 11; } $test = new Test(); var_dump($test->get("OMG")); var_dump($test::OMG);
Output for 7.0.0 - 7.1.0
Warning: constant(): Couldn't find constant static::OMG in /in/dDjBM on line 5 NULL Fatal error: Uncaught Error: Undefined class constant 'OMG' in /in/dDjBM:16 Stack trace: #0 {main} thrown in /in/dDjBM on line 16
Process exited with code 255.
Output for hhvm-3.12.0
Warning: constant(): Couldn't find constant static::OMG in /in/dDjBM on line 5 NULL Fatal error: Couldn't find constant Test::OMG in /in/dDjBM on line 16
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.3 - 5.6.21
Warning: constant(): Couldn't find constant static::OMG in /in/dDjBM on line 5 NULL Fatal error: Undefined class constant 'OMG' in /in/dDjBM on line 16
Process exited with code 255.
Output for 5.3.0 - 5.3.2
Fatal error: Undefined class constant 'static::OMG' in /in/dDjBM on line 5
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /in/dDjBM on line 16
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_PAAMAYIM_NEKUDOTAYIM in /in/dDjBM on line 16
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/dDjBM on line 4
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/dDjBM 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/dDjBM on line 4
Process exited with code 255.