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<?php trait HasStatic { private static $x; public static function setX($x) { self::$x = $x; } public function useX() { return self::$x; } } class UsesStatic { use HasStatic; } HasStatic::setX(123); var_dump((new UsesStatic())->useX());
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Deprecated: Calling static trait method HasStatic::setX is deprecated, it should only be called on a class using the trait in /in/4pXor on line 10 Deprecated: Accessing static trait property HasStatic::$x is deprecated, it should only be accessed on a class using the trait in /in/4pXor on line 4 NULL
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.26, 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
NULL
Output for 4.4.2 - 4.4.9, 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/4pXor 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 T_STRING in /in/4pXor on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/4pXor on line 2
Process exited with code 255.

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