How can checkboxes be processed in PHP forms?

Checkboxes in PHP forms can be processed by using the isset() function to determine if a checkbox was selected or not. When a checkbox is selected, its value is sent to the server as part of the form submission. In PHP, you can check if a checkbox was selected by using the isset() function on the checkbox name. If the checkbox was selected, the isset() function will return true, allowing you to perform further actions based on the checkbox selection.

// Check if the checkbox is selected
if(isset($_POST['checkbox_name'])){
    // Checkbox is selected, perform actions here
    echo "Checkbox is selected!";
} else {
    // Checkbox is not selected, perform actions here
    echo "Checkbox is not selected.";
}