Retaining dropdown values after submitting form using GET method - php

Question

I am using dropdown to select values, and after I click the submit button, my values change. Please help me retain the selected values. Using POST method I have got the solution, but I want to use with GET method. Is it possible?
1.) 1st select stmt:
<form action="" method="GET">
<select name="sort" >
<option value="inc_patientName">Patient Name</option>
<option value="inc_date">Date</option>
<option value="inc_status">Status</option>
<option value="inc_patientAge">Age</option>
</select>
<input type="submit" name="GETREPORT" value="Get Report"/>
if ($_GET)
{echo"hi";}
</form>
2.) 2nd select with while
<?php
//Selecting ward from table ward master
$sql = "SELECT ward_name,ward_id FROM ward_master";
$result = mysql_query($sql);
echo "<select name='ward'>";
while ($row = mysql_fetch_array($result))
{
echo "<option value='" . $row['ward_id'] . "'>" . $row['ward_name'] . "</option>";
}
echo "</select>";
?>
3.) 3rd select with javascript:
<select name="daydropdown" id="daydropdown" ></select>
<select name="monthdropdown" id="monthdropdown"></select>
<select name="yeardropdown" id="yeardropdown"></select>
<script type="text/javascript">
populatedropdown("daydropdown", "monthdropdown", "yeardropdown")
Javascript code:
<script type="text/javascript">
var monthtext=['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sept','Oct','Nov','Dec'];
function populatedropdown(dayfield, monthfield, yearfield)
{
var today=new Date()
var dayfield=document.getElementById(dayfield)
var monthfield=document.getElementById(monthfield)
var yearfield=document.getElementById(yearfield)
for (var i=1; i<=31; i++)
dayfield.options[i]=new Option(i, i)
dayfield.options[today.getDate()]=new Option(today.getDate(), today.getDate(), true, true) //select today's day
for (var m=0; m<12; m++)
monthfield.options[m]=new Option(monthtext[m], monthtext[m])
monthfield.options[today.getMonth()]=new Option(monthtext[today.getMonth()], monthtext[today.getMonth()], true, true) //select today's month
var thisyear=1999
for (var y=0; y<45; y++){
yearfield.options[y]=new Option(thisyear, thisyear)
thisyear+=1
}
yearfield.options[0]=new Option(today.getFullYear(), today.getFullYear(), true, true) //select today's year
}
</script>

Answer 1

try
if(isset($_GET['sort'])) {
echo $_GET['sort'];
}
and get selected index
<option value="inc_patientName" <?php if (isset($_GET['sort']) && $_GET['sort'] == "inc_patientName") echo 'selected="seleceted"'; ?>>Patient Name</option>
and so on for all options values match
For 2nd dropdown:-
while ($row = mysql_fetch_array($result)) {?>
<option value="<?php echo $row['ward_id'];?>" <?php if (isset($_GET['sort']) && $_GET['sort'] == $row['ward_id']) echo 'selected="seleceted"'; ?>><?php echo $row['ward_name'];?></option>
<?php }

Answer 2

use it like this... it myt work.
<select name="ward">
<?php
$sql = "SELECT ward_name,ward_id FROM ward_master";
$result = mysql_query($sql);
while ($row = mysql_fetch_array($result)) {
if ($_GET['ward']==$row["ward_id"]) {
echo '<option selected="selected" value='.$row["ward_id"].'>'.$row["ward_name"].'</option>';
} else {
echo '<option value='.$row["ward_id"].'>'.$row["ward_name"].'</option>';
}
}
?>
</select>

Answer 3

You can do something like this:
<select name="sort" >
<option value="inc_patientName"<?php if ($_GET['sort'] == 'inc_patientName') echo ' selected="seleceted"'; ?>>Patient Name</option>
<option value="inc_date"<?php if ($_GET['sort'] == 'inc_date') echo ' selected="seleceted"'; ?>>Date</option>
<option value="inc_status" <?php if ($_GET['sort'] == 'inc_status') echo ' selected="seleceted"'; ?>>Status</option>
<option value="inc_patientAge"<?php if ($_GET['sort'] == 'inc_patientAge') echo ' selected="seleceted"'; ?>>Age</option>
</select>

Answer 4

Try this:
Use this function in ur script:
function setday(id,elementname)
{
document.getElementById(elementname).value=id;
}
Use this in ur php form, Repeat the same code for year and month dropdowns:
if (isset($_GET['daydropdown']))
{
echo "<script type='text/javascript'>setday('".$_GET['daydropdown']."','daydropdown')</script>";
}