PHP Function Parameters

Hello dear readers! welcome back to another section of our tutorial on PHP. In this tutorial guide, we will be discussing a little bit about the PHP Function Parameters.

A function can be described as a small unit of a program which can take in some inputs in the form of parameters and then does some processing and may return back some values.

Note - The PHP functions are treated in details in our tutorial on PHP functions.

Function Parameters

The PHP function parameters are declared after the function name and inside parentheses. They are declared much like the typical variable would be -

Example

The following below is a simple example -

<?php
   // multiply a value by 10 and return it to the caller
   function multiply ($value) {
      $value = $value * 10;
      return $value;
   }
   
   $retval = multiply (10);
   Print "The return value is $retval\n";
?>

Output

When the above code is executed, it will produce the following result -

The return Value is 100

RECOMMENDED POST: PHP Local Variables

Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial guide, we are going to be discussing about the PHP Global Variables.

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