Displaying and editing checkboxes

<?php
/**
 * Print out checkboxes for selecting options.
 *
 * This function generates checkboxes for selecting options from a provided array.
 * It also checks the checkboxes if the option IDs are present in the $dbEntry string.
 *
 * @param string $name The name attribute for the checkboxes.
 * @param array $checkboxArray An associative array of option IDs and names.
 * @param bool $printCheckbxs (Optional) Indicates whether to print checkboxes or just output names.
 * @param string $dbEntry (Optional) A comma-separated string of option IDs stored in the database.
 *               If provided, checkboxes for corresponding option IDs will be checked.
 */
function printCheckboxes($name, $checkboxArray, $printCheckbxs = true, $dbEntry = '')
{
    // If $dbEntry is not empty, parse it into an array of option IDs
    $array_ids = !empty($dbEntry) ? explode(',', $dbEntry) : [];

    // Get the keys of the checkbox array
    $checkboxKeys = array_keys($checkboxArray);

    // Initialize an array to store option names (if $printCheckbxs = false)
    if (!$printCheckbxs) {
        $justNames = [];
    }

    // Iterate over each option in the checkbox array
    foreach ($checkboxArray as $output_id => $output_name) {

        // Check if the option ID is in the $array_ids array
        $checked = in_array($output_id, $array_ids) ? 'checked' : '';

        if ($printCheckbxs) {
            // Create a checkbox for the option
            echo '<label><input type="checkbox" name="' . $name . '[]" value="' . $output_id . '" ' . $checked . '> ' . $output_name . '</label>';
        } else {
            // Store the option name for later use
            $justNames[] = $checked ? $output_name : '';
        }
    }

    // If not printing checkboxes, output the names separated by commas
    if (!$printCheckbxs) {
        // Filter out empty names and concatenate them with commas
        $names = array_filter($justNames);
        echo implode(', ', $names);
    }
}