spl_autoload_register in php

spl_autoload_register is a PHP function that allows you to register one or more autoloading functions. When an undefined class is encountered, the registered functions are called, in the order they were registered, until the class is successfully loaded.

The function signature for spl_autoload_register is as follows:

spl_autoload_register( callable $autoload_function = null, bool $throw = true, bool $prepend = false )

The $autoload_function parameter should be a callable that takes a single parameter, which is the name of the class to be loaded. The bool $throw parameter specifies whether an exception should be thrown if the autoloader fails to load the class. The bool $prepend parameter specifies whether the autoloader function should be prepended to the list of registered functions instead of appended.

Here is an example of how to use spl_autoload_register:

In this example, the my_autoloader function is registered as an autoloader using spl_autoload_register. When the code tries to create a new instance of the MyClass class, the autoloader function will be called to load the class definition from the appropriate file.