Does PHP Support Function Overloading?

Overloading PHP Functions

Similar to C , you may wonder how function overloading functions in PHP. Can you define different functions based on the presence or absence of arguments?

PHP Function Overloading

Regrettably, PHP does not support function overloading. Function signatures solely consider the function name, regardless of the argument list. Therefore, you cannot create multiple functions with identical names.

Class Method Overloading

PHP handles class method overloading differently from other languages. It employs the same terminology but refers to a distinct pattern.

Variadic Functions

Despite the lack of function overloading, PHP offers variadic functions that can accept a varying number of arguments. These functions utilize func_num_args() and func_get_arg() to access and utilize the provided arguments.

Example:

function myFunc() {
    for ($i = 0; $i < func_num_args(); $i++) {
        printf("Argument %d: %s\n", $i, func_get_arg($i));
    }
}

/*
Output:
Argument 0: a
Argument 1: 2
Argument 2: 3.5
*/
myFunc('a', 2, 3.5);

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