我正在开发一个
PHP Web应用程序.我使用了来自gurrido.net的新数据网格,它在本地运行良好但是当我将其上传到服务器时,我收到以下错误:
Fatal error: Cannot make non static method Base::getClassName() static
in class Singletons in /var/www/reskb/PHPinc/Singletons.class.PHP on
line 84
在我没有使用网格的旧版本中,我得到了它的工作.这是我的singletons.class.PHP文件的代码:
<? class Singletons extends Base { var $objects = array(); function getClassName() { return 'Singletons'; } function _instance() { static $_instance = NULL; if ($_instance == NULL) { $className = Singletons::getClassName(); $_instance = new $className(); } return $_instance; } function put($object) { $self = Singletons::_instance(); $className = $object->getClassName(); $self->objects[$className] = $object; } function get($className) { $self = Singletons::_instance(); if(!empty($self->objects[$className])) return $self->objects[$className]; else return ''; } } Singletons::_instance(); ?>
解决方法
您应该使用object调用函数getClassName或将getClassName定义为static. –
<?PHP class Singletons extends Base { var $objects = array(); static function getClassName() { return 'Singletons'; } static function _instance() { static $_instance = NULL; if ($_instance == NULL) { $className = Singletons::getClassName(); $_instance = new $className(); } return $_instance; } function put($object) { $self = Singletons::_instance(); $className = $object->getClassName(); $self->objects[$className] = $object; } function get($className) { $self = Singletons::_instance(); if(!empty($self->objects[$className])) return $self->objects[$className]; else return ''; } } Singletons::_instance(); ?>