What are the potential challenges of converting a dropdown list to a checkbox in PHP, especially within a WordPress template?

Converting a dropdown list to checkboxes in PHP, especially within a WordPress template, can be challenging due to the differences in how the values are handled. To solve this issue, you can loop through the options in the dropdown list and create a checkbox for each one. This way, users can select multiple options instead of just one.

// Assuming $dropdown_options is an array of options from the dropdown list
foreach ($dropdown_options as $option) {
    echo '<input type="checkbox" name="checkbox_options[]" value="' . $option . '">' . $option . '<br>';
}