Date HTML Select Boxes functions

[JasonDFR]

I've been working on this today. Please use or improve. If you improve, please post your code here so I can use it. If I made any mistakes, let me know.

Calling these functions will output HTML select boxes.

<?php

function yearOptions($startYear = null, $endYear = null) {

    $startYear = is_null($startYear) ? (int) date('Y') : $startYear;
    $endYear = is_null($endYear) ? $startYear + 3 : $endYear;

    echo '<select id="year" name="year">'."\n";
    
    for ( $i = $startYear; $i <= $endYear; $i++ ) {

        if ( $i == (int) date('Y') ) {
            echo '<option value="' . $i . '" selected="selected">' . $i . '</option>'."\n";
        } else {
            echo '<option value="' . $i . '">' . $i . '</option>'."\n";
        }

    }
    
    echo '</select>' . "\n";
    
}

function monthOptions() {

    echo '<select id="month" name="month">'."\n";

    for ( $i = 1; $i <= 12; $i++ ) {

        if ( $i == (int) date('n') ) {
            echo '<option value="' . $i . '" selected="selected">' . date("F", mktime(0, 0, 0, $i)) .'</option>' . "\n";
        } else {
            echo '<option value="' . $i . '">' . date("F", mktime(0, 0, 0, $i)) . '</option>' . "\n";
        }

    }

    echo '</select>' . "\n";

}

function dayOptions() {

    echo '<select id="day" name="day">'."\n";

    for ( $i = 1; $i <= 31; $i++ ) {

        if ( $i == (int) date('j') ) {
            echo '<option value="' . $i . '" selected="selected">' . $i . '</option>'."\n";
        } else {
            echo '<option value="' . $i . '">'.$i.'</option>'."\n";
        }
    }

    echo '</select>' . "\n";
    
}