functions

Functions in PHP

Functions in PHP

Functions in PHP are blocks of code that can be reused. You define a function and then call it whenever you need it.

Defining a Function

To define a function in PHP, use the function keyword:

      
        <?php
          function greet($name) {
            echo "Hello, $name!";
          }
          greet("John");
        ?>

Activity

Try It Yourself!

Write a function that takes two numbers as parameters and returns their sum.

Quiz

Quick Quiz

  1. What keyword is used to define a function in PHP?
  2. How do you call a function in PHP?

Answers: The function keyword; Call a function by writing its name followed by parentheses (e.g., greet()).