I've got the data retrieval working for one drop down selection using ajax but i want it to retrieve data based on two drop-down selection conditions. How do i parse two variables to my showChoice function and then store the 2nd choice in another variable. I would appreciate any help.
<html>
<head>
<script>
function showChoice(str) {
if (str == "") {
document.getElementById("txtHint").innerHTML = "";
return;
} else {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else {
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("txtHint").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET","getuser.php?q="+str,true);
xmlhttp.send();
}
}
</script>
</head>
<body>
<form>
<select name="choices" onchange="showChoice(this.value)">
<option value="">Select a departure point:</option>
<option value="London">London</option>
<option value="New Castle">New Castle</option>
</select>
</form>
</body>
</html>
Then the getuser.php doc
<!DOCTYPE html>
<html>
<head>
<style>
table {
width: 100%;
border-collapse: collapse;
}
table, td, th {
border: 1px solid black;
padding: 5px;
}
th {text-align: left;}
</style>
</head>
<body>
<?php
$q = $_GET["q"];
$con = mysqli_connect('localhost','root','','busdb');
if (!$con) {
die('Could not connect: ' . mysqli_error($con));
}
mysqli_select_db($con,"busdb");
$sql="SELECT * FROM busRoutes WHERE Departure = '".$q."'";
$result = mysqli_query($con,$sql);
echo "<table>
<tr>
<th>ID</th>
<th>Departure</th>
<th>Destination</th>
<th>Time</th>
</tr>";
while($row = mysqli_fetch_array($result)) {
echo "<tr>";
echo "<td>" . $row['ID'] . "</td>";
echo "<td>" . $row['Departure'] . "</td>";
echo "<td>" . $row['Destination'] . "</td>";
echo "<td>" . $row['Time'] . "</td>";
echo "</tr>";
}
echo "</table>";
mysqli_close($con);
?>
</body>
</html>