Class Php

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class Shop {
  private static $instance;
  public $name="shop";
  private function ___construct() {
  }
  public static function getInstance() {
    if ( empty( self::$instance ) ) {
    self::$instance = new Shop();
    }
    return self::$instance;
  }
}
$first = Shop::getInstance();
$first-> name="A";
$second = Shop::getInstance();
print $second -> name;
?>