How can PHP developers effectively handle radio button and checkbox inputs in contact forms for proper data submission?

When handling radio button and checkbox inputs in contact forms, PHP developers can effectively manage the data submission by checking if the input is set and then processing the selected options accordingly. By using conditional statements and looping through the input values, developers can ensure that the correct data is captured and submitted.

// Handle radio button input
if(isset($_POST['radio_button'])){
    $radio_value = $_POST['radio_button'];
    // Process the selected radio button value
}

// Handle checkbox input
if(isset($_POST['checkbox'])){
    $checkbox_values = $_POST['checkbox'];
    foreach($checkbox_values as $value){
        // Process each selected checkbox value
    }
}