PHP Function Parameters

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we will be discussing about PHP Function Parameters.

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

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

Function Parameters

Function parameters are declared after the function name and inside parentheses. The function parameters 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

READ: 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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