Markup: Select options for Month, Day, and Year.

Date-Select-Markup.html

<span>
     <select name="day">
          <option value="monday">Monday</option>
          <option value="tuesday">Tuesday</option>
          <option value="wednesday">Wednesday</option>
          <option value="thursday">Thursday</option>
          <option value="friday">Friday</option>
          <option value="saturday">Saturday</option>
          <option value="sunday">Sunday</option>
     </select>
</span>
<span>
     <select name="month">
        <option value="01">January</option>
        <option value="02">February</option>
        <option value="03">March</option>
        <option value="04">April</option>
        <option value="05">May</option>
        <option value="06">June</option>
        <option value="07">July</option>
        <option value="08">August</option>
        <option value="09">September</option>
        <option value="10">October</option>
        <option value="11">November</option>
        <option value="12">December</option>
     </select> 
</span>
<span>
     <select name="date">
          <option value="01">1</option>
          <option value="02">2</option>
          <option value="03">3</option>
          <option value="04">4</option>
          <option value="05">5</option>
          <option value="06">6</option>
          <option value="07">7</option>
          <option value="08">8</option>
          <option value="09">9</option>
          <option value="10">10</option>
          <option value="11">11</option>
          <option value="12">12</option>
          <option value="13">13</option>
          <option value="14">14</option>
          <option value="15">15</option>
          <option value="16">16</option>
          <option value="17">17</option>
          <option value="18">18</option>
          <option value="19">19</option>
          <option value="20">20</option>
          <option value="21">21</option>
          <option value="22">22</option>
          <option value="23">23</option>
          <option value="24">24</option>
          <option value="25">25</option>
          <option value="26">26</option>
          <option value="27">27</option>
          <option value="28">28</option>
          <option value="29">29</option>
          <option value="30">30</option>
          <option value="31">31</option>
     </select>
</span>
<span>
     <select name="year">
          <option value="2050">2050</option>
          <option value="2049">2049</option>
          <option value="2048">2048</option>
          <option value="2047">2047</option>
          <option value="2046">2046</option>
          <option value="2045">2045</option>
          <option value="2044">2044</option>
          <option value="2043">2043</option>
          <option value="2042">2042</option>
          <option value="2041">2041</option>
          <option value="2040">2040</option>
          <option value="2039">2039</option>
          <option value="2038">2038</option>
          <option value="2037">2037</option>
          <option value="2036">2036</option>
          <option value="2035">2035</option>
          <option value="2034">2034</option>
          <option value="2033">2033</option>
          <option value="2032">2032</option>
          <option value="2031">2031</option>
          <option value="2030">2030</option>
          <option value="2029">2029</option>
          <option value="2028">2028</option>
          <option value="2027">2027</option>
          <option value="2026">2026</option>
          <option value="2025">2025</option>
          <option value="2024">2024</option>
          <option value="2023">2023</option>
          <option value="2022">2022</option>
          <option value="2021">2021</option>
          <option value="2020">2020</option>
          <option value="2019">2019</option>
          <option value="2018">2018</option>
          <option value="2017">2017</option>
          <option value="2016">2016</option>
          <option value="2015">2015</option>
          <option value="2014">2014</option>
          <option value="2013">2013</option>
          <option value="2012">2012</option>
          <option value="2011">2011</option>
          <option value="2010">2010</option>
          <option value="2009">2009</option>
          <option value="2008">2008</option>
          <option value="2007">2007</option>
          <option value="2006">2006</option>
          <option value="2005">2005</option>
          <option value="2004">2004</option>
          <option value="2003">2003</option>
          <option value="2002">2002</option>
          <option value="2001">2001</option>
          <option value="2000">2000</option>
          <option value="1999">1999</option>
          <option value="1998">1998</option>
          <option value="1997">1997</option>
          <option value="1996">1996</option>
          <option value="1995">1995</option>
          <option value="1994">1994</option>
          <option value="1993">1993</option>
          <option value="1992">1992</option>
          <option value="1991">1991</option>
          <option value="1990">1990</option>
          <option value="1989">1989</option>
          <option value="1988">1988</option>
          <option value="1987">1987</option>
          <option value="1986">1986</option>
          <option value="1985">1985</option>
          <option value="1984">1984</option>
          <option value="1983">1983</option>
          <option value="1982">1982</option>
          <option value="1981">1981</option>
          <option value="1980">1980</option>
          <option value="1979">1979</option>
          <option value="1978">1978</option>
          <option value="1977">1977</option>
          <option value="1976">1976</option>
          <option value="1975">1975</option>
          <option value="1974">1974</option>
          <option value="1973">1973</option>
          <option value="1972">1972</option>
          <option value="1971">1971</option>
          <option value="1970">1970</option>
          <option value="1969">1969</option>
          <option value="1968">1968</option>
          <option value="1967">1967</option>
          <option value="1966">1966</option>
          <option value="1965">1965</option>
          <option value="1964">1964</option>
          <option value="1963">1963</option>
          <option value="1962">1962</option>
          <option value="1961">1961</option>
          <option value="1960">1960</option>
          <option value="1959">1959</option>
          <option value="1958">1958</option>
          <option value="1957">1957</option>
          <option value="1956">1956</option>
          <option value="1955">1955</option>
          <option value="1954">1954</option>
          <option value="1953">1953</option>
          <option value="1952">1952</option>
          <option value="1951">1951</option>
          <option value="1950">1950</option>
          <option value="1949">1949</option>
          <option value="1948">1948</option>
          <option value="1947">1947</option>
          <option value="1946">1946</option>
          <option value="1945">1945</option>
          <option value="1944">1944</option>
          <option value="1943">1943</option>
          <option value="1942">1942</option>
          <option value="1941">1941</option>
          <option value="1940">1940</option>
          <option value="1939">1939</option>
          <option value="1938">1938</option>
          <option value="1937">1937</option>
          <option value="1936">1936</option>
          <option value="1935">1935</option>
          <option value="1934">1934</option>
          <option value="1933">1933</option>
          <option value="1932">1932</option>
          <option value="1931">1931</option>
          <option value="1930">1930</option>
          <option value="1929">1929</option>
          <option value="1928">1928</option>
          <option value="1927">1927</option>
          <option value="1926">1926</option>
          <option value="1925">1925</option>
          <option value="1924">1924</option>
          <option value="1923">1923</option>
          <option value="1922">1922</option>
          <option value="1921">1921</option>
          <option value="1920">1920</option>
          <option value="1919">1919</option>
          <option value="1918">1918</option>
          <option value="1917">1917</option>
          <option value="1916">1916</option>
          <option value="1915">1915</option>
          <option value="1914">1914</option>
          <option value="1913">1913</option>
          <option value="1912">1912</option>
          <option value="1911">1911</option>
          <option value="1910">1910</option>
          <option value="1909">1909</option>
          <option value="1908">1908</option>
          <option value="1907">1907</option>
          <option value="1906">1906</option>
          <option value="1905">1905</option>
          <option value="1904">1904</option>
          <option value="1903">1903</option>
          <option value="1902">1902</option>
          <option value="1901">1901</option>
          <option value="1900">1900</option>
     </select>
</span>

$('select[name=year]').on('change', function(){
    checkTotalDay();
});
$('select[name=month]').on('change', function(){
    checkTotalDay();
});

function checkTotalDay() {
    var year = $('select[name=year]').val();
    var month = $('select[name=month]').val();
    var totalDate = 31;
    if(year !== '' && month !== '') {
        totalDate = new Date(year, month, 0).getDate();
    }
    $('select[name=date]').empty();
    for(var i = 1; i <= totalDate; i++) {
       $('select[name=date]').append("<option value='"+i+"'>"+i+"</option>");
    }
}

Thank you so much!

Try below code if anyone want to use php loop to display.

<span>
      <select name="birth_month">
        <?php for( $m=1; $m<=12; ++$m ) { 
          $month_label = date('F', mktime(0, 0, 0, $m, 1));
        ?>
          <option value="<?php echo $month_label; ?>"><?php echo $month_label; ?></option>
        <?php } ?>
      </select> 
    </span>
    <span>
      <select name="birth_day">
        <?php 
          $start_date = 1;
          $end_date   = 31;
          for( $j=$start_date; $j<=$end_date; $j++ ) {
            echo '<option value='.$j.'>'.$j.'</option>';
          }
        ?>
      </select>
    </span>
    <span>
      <select name="birth_year">
        <?php 
          $year = date('Y');
          $min = $year - 60;
          $max = $year;
          for( $i=$max; $i>=$min; $i-- ) {
            echo '<option value='.$i.'>'.$i.'</option>';
          }
        ?>
      </select>
    </span>

Sir, you are the real MVP

Thanks for the snippet...
Saves a lot of time...

Very useful. Thanks alot

Thanks. Saves a lot of time.

thanks very much

Thank you)

You are a legend

thank you

think you

Thank you!

Add weekdays too.

thank 👍