What are common pitfalls to avoid when using PHP to generate dynamic dropdown menus for dates?

Common pitfalls to avoid when using PHP to generate dynamic dropdown menus for dates include not properly handling leap years, not considering the current date as the default selected option, and not sanitizing user input to prevent SQL injection attacks. To solve these issues, make sure to use functions like date() and strtotime() to accurately calculate dates, set the current date as the default selected option, and use prepared statements or input validation to sanitize user input.

// Generate dynamic dropdown menu for dates
echo '<select name="dates">';
$current_date = date('Y-m-d');
for ($i = 0; $i < 365; $i++) {
    $date = date('Y-m-d', strtotime($current_date . ' + ' . $i . ' days'));
    echo '<option value="' . $date . '"';
    if ($date == $current_date) {
        echo ' selected';
    }
    echo '>' . $date . '</option>';
}
echo '</select>';