Web and technology
AMQP
Abbreviation for Advanced Message Queuing Protocol
In short and in plain language
AMQP is a technical rule for how programs swap messages.
The messages wait in a line until a program picks them up.
Shops use this for tasks in the background.
Definition
AMQP is an open protocol through which programs place messages in a queue and pick them up from there. Shop systems use it, for example, to hand background tasks to a separate queue service. For this, PHP needs a matching extension.