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<?php interface ISingleton { public static function getInstance(): ISingleton; } abstract class Singleton implements ISingleton { private static $_instances = []; final private function __construct () {} final private function __clone() {} final private function __wakeup() {} final public static function getInstance() : ISingleton { self::$_instances[static::class] = self::$_instances[static::class] ?? new static(); return self::$_instances[static::class]; } } class Flextype extends Singleton { } var_export(Flextype::getInstance());
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Warning: Private methods cannot be final as they are never overridden by other classes in /in/m7AbZ on line 13 Warning: Private methods cannot be final as they are never overridden by other classes in /in/m7AbZ on line 14 Warning: The magic method Singleton::__wakeup() must have public visibility in /in/m7AbZ on line 14 \Flextype::__set_state(array( ))
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33
Warning: Private methods cannot be final as they are never overridden by other classes in /in/m7AbZ on line 13 Warning: Private methods cannot be final as they are never overridden by other classes in /in/m7AbZ on line 14 Warning: The magic method Singleton::__wakeup() must have public visibility in /in/m7AbZ on line 14 Flextype::__set_state(array( ))
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Flextype::__set_state(array( ))
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