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<?php class Database { private static $Instance; private $query = ''; private function __construct() { } public static function getInstance() { if (!self::$Instance) { self::$Instance= new Database(); } return self::$Instance; } public function query($table) { $this->query = "select * from $table"; } public function result() { echo $this->query; } } $db = Database::getInstance(); $db->query('user_tb'); $db->result(); ?>
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