Is it necessary to use the 'echo' statement when calling a function in PHP, and how does it affect the return value?

When calling a function in PHP, it is not necessary to use the 'echo' statement unless you specifically want to output the return value of the function directly to the screen. If you do not use 'echo', the return value of the function will still be processed and can be stored in a variable or used in other ways within your code. 

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

// Calling the function without using 'echo'
$result = addNumbers(5, 3);

// Using the return value of the function
echo $result; // Output: 8

Keywords

echo function return value PHP calling

Related Questions