What are the potential performance implications of using a large if structure in PHP for handling form submissions with multiple checkboxes?

Using a large if structure in PHP for handling form submissions with multiple checkboxes can lead to decreased performance due to the need to evaluate multiple conditions. To improve performance, consider using an array to store the checkbox values and loop through them instead of using individual if statements.

// Example code snippet using an array to handle checkbox values
$checkboxes = $_POST['checkboxes'] ?? [];

foreach ($checkboxes as $checkbox) {
    // Handle each checkbox value here
}