CODE (htmlphp):
скопировать код в буфер обмена
скопировать код в буфер обмена
- <?php
- $monthOptions = '<option value="0" id="month_option">Month:</option>';
- $dayOptions = '<option value="0" id="day_option">Day:</option>';
- $yearOptions = '<option value="0" id="year_option">Year:</option>';
- for($month=1; $month<=12; $month++)
- {
- $monthOptions .= "<option value=\"{$month}\">{$monthName}</option>\n";
- }
- for($day=1; $day<=31; $day++)
- {
- $dayOptions .= "<option value=\"{$day}\">{$day}</option>\n";
- }
- for($year=2012; $year>=1890; $year--)
- {
- $yearOptions .= "<option value=\"{$year}\">{$year}</option>\n";
- }
- ?>
- ..............................
- <script type="text/javascript">
- function updateDays()
- {
- //Create variables needed
- var monthSel = document.getElementById('month');
- var daySel = document.getElementById('day');
- var yearSel = document.getElementById('year');
- var monthVal = monthSel.value;
- var yearVal = yearSel.value;
- //Determine the number of days in the month/year
- var daysInMonth = 31;
- if (monthVal==2)
- {
- daysInMonth = (yearVal%4==0 && (yearVal%100!=0 || yearVal%400==0)) ? 29 : 28;
- }
- else if (monthVal==4 || monthVal==6 || monthVal==9 || monthVal==11)
- {
- daysInMonth = 30;
- }
- //Add/remove options from days select list as needed
- if(daySel.options.length > daysInMonth)
- { //Remove excess days, if needed
- daySel.options.length = daysInMonth;
- }
- while (daySel.options.length != daysInMonth)
- { //Add additional days, if needed
- daySel.options[daySel.length] = new Option(daySel.length+1, daySel.length+1, false);
- }
- return;
- }
- </script>
- <P>Date of birth:<br>
- <select name="day" id="day">
- <?php echo $dayOptions; ?>
- </select>
- <select name="month" id="month" onchange="updateDays();">
- <?php echo $monthOptions; ?>
- </select>
- <select name="year" id="year" onchange="updateDays();">
- <?php echo $yearOptions; ?>
- </select>