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<?php //file testWorks.php interface IStringable1 { public function toString(); } class MyTestWorks1 implements IStringable1 { public function toString($a = '', $b = NULL) { echo "My Test is instantiated", PHP_EOL; } } $obj = new MyTestWorks1(); $obj->toString(); //file testBroken.php interface IStringable2 { public function toString(); } trait TStringable2 { public function toString($a = '', $b = NULL) { echo "My Test is instantiated", PHP_EOL; } } class MyTestWorks2 implements IStringable2{ use TStringable2; } $obj = new MyTestWorks2(); $obj->toString();
Output for 5.4.0 - 5.4.10, 5.4.14 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
My Test is instantiated My Test is instantiated
Output for 5.4.11 - 5.4.13
My Test is instantiated Fatal error: Declaration of TStringable2::toString($a = '', $b = NULL) must be compatible with IStringable2::toString() in /in/42bbB on line 28
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 T_STRING in /in/42bbB on line 20
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/42bbB on line 20
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/42bbB 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 in /in/42bbB on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/42bbB on line 4
Process exited with code 255.
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