How to define a function in PHP?Group of answer choicesfunctionName(parameters) {function body}function {function body}data type functionName(parameters) {function body}function functionName(parameters) {function body}

To define a function in PHP, you would use the following syntax:

function functionName(parameters) {
    // function body
}

Here's a step-by-step guide:

1. Start with the keyword function - this tells PHP that you're defining a function.

2. Next, write the name of your function. This should be unique and descriptive of what your function does. For example, if your function adds two numbers, you might call it addNumbers.

3. After the function name, you'll add parentheses (). Inside these parentheses, you can define any parameters that your function will use. Parameters are like variables - they hold values that your function will use when it runs. If your function doesn't need any parameters, you can leave these parentheses empty.

4. After the parentheses, you'll add a set of curly braces {}. Inside these braces is where you'll write the body of your function - this is the code that will run when your function is called.

Here's an example of what a function might look like in PHP:

function addNumbers($num1, $num2) {
    return $num1 + $num2;
}

In this example, addNumbers is