Usage of PHP and MySQL guids

Guid: that is, globally unique identifier (globally unique identifier) is also called UUID (universally unique identifier ). GUID is a 128-bit digital identifier generated by a specific algorithm. It is used to indicate the uniqueness of a product. GUID is used to assign a unique identifier to a network or system with multiple nodes and computers.
On Windows, GUID is widely used in Microsoft products and is used to identify objects such as registry items, classes and interfaces, databases, and system directories.

PHP does not have a standard guid, but there is a function uniqid () to generate a unique ID. In MySQL, a function generates guid: Select UUID ()