register_shutdown_function()

register_shutdown_function() — Register a function for execution on shutdown.

register_shutdown_function() — Registers a callback to be executed after script execution finishes or exit is called.

Multiple calls to register_shutdown_function can be made, and each will be called in the same order as they were registered. If you call exit within one registered shutdown function, processing will stop completely and no other registered shutdown functions will be called.

Shutdown functions may also call register_shutdown_function themselves to add a shutdown function to the end of the queue.

Inputs: callback: The shutdown callback to register. The shutdown callbacks are executed as the part of the request, so it’s possible to send output from them and access output buffers. args: It is possible to pass parameters to the shutdown function by passing additional parameters.

Returns: No value is returned.