PHP Return Values

Functions in PHP can return values using the return statement. This allows functions to process data and send back a result, making them more useful and flexible.

🔹 Why Use Return Values?

• Reusability – The function can be used multiple times without modifying the code.
• Flexibility – Functions can process and return different results based on input.
• Better Code Structure – Separates logic from output for cleaner code.

📝 Example 1: Returning a Value from a Function

This function calculates the sum of two numbers and returns the result.

<?php
function add($a, $b) {
    return $a + $b; // Returning the sum
}

$result = add(5, 7);
echo "Sum: $result"; // Outputs "Sum: 12"
?>

Explanation:

• The function add($a, $b) calculates the sum and returns it.
• The returned value is stored in $result.
• It is then printed using echo.

📝 Example 2: Returning a String Value

A function can return text values too.

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

$message = greet("Alice");
echo $message; // Outputs "Hello, Alice!"
?>

Explanation:

• The function returns a greeting message.
• The returned value is stored in $message and displayed.

📝 Example 3: Returning Multiple Values Using an Array

PHP functions can return multiple values by using arrays.

<?php
function getUser() {
    return array("Alice", 25, "Developer");
}

$user = getUser();
echo "Name: " . $user[0] . ", Age: " . $user[1] . ", Job: " . $user[2];
?>

Explanation:

• The function returns an array with three values.
• The values are accessed using array indexes ([0], [1], [2]).

🎯 Key Takeaways

• Use return to send values from a function.
• You can return numbers, strings, and even arrays.
• Stored return values can be used in calculations, conditions, or other functions.

📝 Practice Time!

Modify these examples and try different values to understand how return values work in PHP!