How is it possible to return a value from a function?

To return a value from a function in PHP, you can use the return statement. The return statement is followed by the value you want to return. When the return statement is encountered, the function execution is terminated, and the specified value is passed back to the calling code. For example, you can define a function calculateSum($a, $b) that calculates the sum of two numbers and returns the result using return $a + $b;. The calling code can then capture the returned value and use it as needed. It's important to note that a function can only return a single value. If you need to return multiple values, you can use an array, object, or other data structures to encapsulate the values and return them together.