How can PHP developers ensure the proper processing of button inputs for mathematical operations in forms?

To ensure proper processing of button inputs for mathematical operations in forms, PHP developers can use conditional statements to determine which operation to perform based on the button clicked. By assigning unique values to each button and checking which button was clicked, developers can execute the corresponding mathematical operation in the form. 

<?php
if(isset($_POST['calculate'])) {
    $num1 = $_POST['num1'];
    $num2 = $_POST['num2'];
    $operation = $_POST['operation'];

    if($operation == 'add') {
        $result = $num1 + $num2;
    } elseif($operation == 'subtract') {
        $result = $num1 - $num2;
    } elseif($operation == 'multiply') {
        $result = $num1 * $num2;
    } elseif($operation == 'divide') {
        $result = $num1 / $num2;
    }

    echo "Result: " . $result;
}
?>

Keywords

PHP button inputs mathematical operations forms processing

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