Remarks#

This section provides an overview of what function is, and why a developer might want to use it.

It should also mention any large subjects within function, and link out to the related topics. Since the Documentation for function is new, you may need to create initial versions of those related topics.

Installation or Setup

A function is a block of organised, reusable code that is used to perform a single, related action. Functions usually “take in” data, process it, and “return” a result.

User defined function

A function defined by user.

Example in PHP

   //Function definition

    function add ($a, $b)
    {
        $sum = $a + $b;
        return $sum;
    }
    
    //Function invokation
    
    $sum = add(1,2);