PHP CRM_Utils_VersionCheck::_singleton示例

示例#1

文件： VersionCheck.php 项目： peteainsworth/civicrm-4.2.9-drupal

 /**
  * Static instance provider
  *
  * Method providing static instance of CRM_Utils_VersionCheck,
  * as in Singleton pattern
  *
  * @return CRM_Utils_VersionCheck
  */
 static function &singleton()
 {
     if (!isset(self::$_singleton)) {
         self::$_singleton = new CRM_Utils_VersionCheck();
     }
     return self::$_singleton;
 }