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<?php namespace { const HELLO_WORLD = "Hello World"; trait TraitParent { public static $staticvar = HELLO_WORLD; public static function test() { return self::$staticvar; } } trait TraitChild { use TraitParent; } Class ClassWhitChildTrait { use TraitChild; } Class ClassWhitOverideChildTrait extends ClassWhitChildTrait { use TraitParent; } echo ClassWhitChildTrait::test() . PHP_EOL; echo ClassWhitOverideChildTrait::test(); }
Output for 7.3.12 - 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 - 8.3.7
Hello World Hello World
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Fatal error: ClassWhitChildTrait and TraitParent define the same property ($staticvar) in the composition of ClassWhitOverideChildTrait. However, the definition differs and is considered incompatible. Class was composed in /in/fSRan on line 26
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: ClassWhitChildTrait and TraitParent define the same property ($staticvar) in the composition of ClassWhitOverideChildTrait. However, the definition differs and is considered incompatible. Class was composed in /in/fSRan on line 29
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/fSRan on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected '{' in /in/fSRan 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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '{' in /in/fSRan on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/fSRan on line 2
Process exited with code 255.
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196.73 ms | 401 KiB | 315 Q