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<?php interface Foo { function baz($moo); } abstract class Bar implements Foo {} class_alias('Bar', 'Bar53'); eval('abstract class Bar52 extends Bar {}'); class Test53 extends Bar53 { function baz($moo) {} } class Test52 extends Bar52 { function baz($moo) {} } var_dump(new Test52() instanceof Foo); var_dump(new Test53() instanceof Foo);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(true) bool(true)
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Fatal error: Call to undefined function class_alias() in /in/EXfLf on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/EXfLf 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_STRING in /in/EXfLf on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/EXfLf on line 2
Process exited with code 255.
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