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<?php trait foo { static $bar = []; public function a() { static::$bar = ["foo"]; echo "Goodbye Moon"; } } class bing { use foo; public function a() { foo::a(); var_dump(self::$bar, foo::$bar); } public function b() { foo::a(); self::$bar[] = "bat"; var_dump(self::$bar, foo::$bar); } } $bing = new bing; $bing->a(); $bing->b();
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Calling static trait method foo::a is deprecated, it should only be called on a class using the trait in /in/piUFm on line 16 Fatal error: Uncaught Error: Non-static method foo::a() cannot be called statically in /in/piUFm:16 Stack trace: #0 /in/piUFm(28): bing->a() #1 {main} thrown in /in/piUFm on line 16
Process exited with code 255.

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