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Pulling data from mySql table using PHP and AJAX
Hi, I am a PHP newbie and need some help with this storelocator I am building.
I would like to user to select the county they would like to find store located in by using a drop down menu.
this is the html and AJAX for the user interface
[code=html]<html>
<head>
<script type=”text/javascript”>
function showUser(str)
{
if (str==””)
{
document.getElementById(“txtHint”).innerHTML=””;
return;
}
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=”shop” onchange=”showUser(this.value)”>
<option value=””>Select a County/Region:</option>
<option value=”1″>West Midlands</option>
<option value=”2″>East Midlands</option>
<option value=”3″>South West</option>
<option value=”4″>South East</option>
<option value=”5″>The North</option>
<option value=”6″>Scotland</option>
<option value=”7″>Wales</option>
<option value=”8″>London</option>
<option value=”9″>Herefordshire</option>
</select>
</form>
<br />
<div id=”txtHint”><b>Try one of these outlets or shops</b></div>
</body>
</html>
I have a table called store in mySQL db with the following fields: company_name, address, county, country, phone, web_site.
I would like the user to be able to select e.g. “Herefordshire” and all shops with county = Herefordshire should be displayed. This is the page for the php operation:
[code=php]<?php
$q=$_GET[“q”];
$con = mysql_connect(‘localhost’, ‘shops’, ‘pwds123’);
if (!$con)
{
die(‘Could not connect: ‘ . mysql_error());
}
mysql_select_db(“shops”, $con);
$sql=”SELECT * FROM shop WHERE county = ‘”.$q.”‘”;
$result = mysql_query($sql);
echo “<table border=’1’>
<tr>
<th>Company Name</th>
<th>Address</th>
<th>City/Town</th>
<th>County</th>
<th>Post Code</th>
<th>Phone</th>
<th>Web Site</th>
</tr>”;
while($row = mysql_fetch_array($result))
{
echo “<tr>”;
echo “<td>” . $row[‘company_name’] . “</td>”;
echo “<td>” . $row[‘address’] . “</td>”;
echo “<td>” . $row[‘city_town’] . “</td>”;
echo “<td>” . $row[‘county’] . “</td>”;
echo “<td>” . $row[‘post_code’] . “</td>”;
echo “<td>” . $row[‘phone’] . “</td>”;
echo “<td>” . $row[‘web_site’] . “</td>”;
echo “</tr>”;
}
echo “</table>”;
mysql_close($con);
?>
The above doesn’t pull any data – which I assume it because I don’t know how to set up the query properly.
The reason I am using AJAX on the html script is because I found an example on the web but I realise it might not be the best way but am not capable to determine that.
Appreciate any help or nudge in the right direction. As I said, am a newbie so need some detailed help.
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