« MongoGridFSFile::getResource MongoGridFSFile::write » PHP Manual MongoGridFSFile Returns this file's size MongoGridFSFile::getSize (PECL mongo >=0.9.0) MongoGridFSFile::getSize — Returns this file's size 说明 public MongoGridFSFile::getSize ( void ) : int 参数 此函数没有参数。 返回值 Returns this file's size