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<?php interface Locale { const RU = 'ru_RU'; const EN = 'en_EN'; } var_dump(Locale::RU); die; abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { if (!(static::$instanses instanceof static)) { static::$instanses = new static; } return static::$instanses; } } class A extends T { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Cannot declare interface Locale, because the name is already in use in /in/t84iA on line 2
Process exited with code 255.
Output for 7.3.32 - 7.3.33, 7.4.33, 8.0.13
string(5) "ru_RU"
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Cannot redeclare class Locale in /in/t84iA on line 2
Process exited with code 255.

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