hi;
I'm new to PHP and AJAX MySQL codes. I found a simple code for
PHP and AJAX MySQL Database communication on :
http://www.w3schools.c om/php/php_ajax_databa se.asp
I downloaded the code and uploaded to my server but it does not work . I script does not display the data from the database.
Can anyone look at this and help me out.
thanks
6  9758  ak1dnar 1,584
Recognized Expert Top Contributor
If you create the user table in ajax_demo database definitely it will work.
Why don't you post the Coding here, that you used in your server.
Me too... I keep getting error message from the HTML page
Line : 2
Char : 21
Error : Expected ';'
Line : 7
Char : 1
Error : Object Expected
=============== =============== =============== =
[PHP]<html>
<head>
<script src="selectuser .js"></script>
</head>
<body><form>
Select a User:
<select name="users" onchange="showU ser(this.value) ">
<option value="1">20000 01</option>
<option value="2">20000 02</option>
<option value="3">20000 03</option>
<option value="4">20000 04</option>
</select>
</form><p>
<div id="txtHint"><b >User info will be listed here.</b></div>
</p></body>
</html>[/PHP]
Im really no idea
Thanks
ak1dnar 1,584
Recognized Expert Top Contributor
Me too... I keep getting error message from the HTML page
Line : 2
Char : 21
Error : Expected ';'
Line : 7
Char : 1
Error : Object Expected
=============== =============== =============== =
<html>
<head>
<script src="selectuser .js"></script>
</head>
<body><form>
Select a User:
<select name="users" onchange="showU ser(this.value) ">
<option value="1">20000 01</option>
<option value="2">20000 02</option>
<option value="3">20000 03</option>
<option value="4">20000 04</option>
</select>
</form><p>
<div id="txtHint"><b >User info will be listed here.</b></div>
</p></body>
</html>
Im really no idea
Thanks
This Error is Coming from your selectuser.js file. You are posting only HTML part.
Try this and if not working post the js file. Note the " ; " by the end of function. - <select name="users" onchange="showUser(this.value);">
Here the JavaScript and PHP files. Im only did some changes on PHP file.
selectuser.js -
var xmlHttpfunction showUser(str)
-
{
-
xmlHttp=GetXmlHttpObject()
-
if (xmlHttp==null)
-
{
-
alert ("Browser does not support HTTP Request")
-
return
-
}
-
var url="getuser.php"
-
url=url+"?q="+str
-
url=url+"&sid="+Math.random()
-
xmlHttp.onreadystatechange=stateChanged
-
xmlHttp.open("GET",url,true)
-
xmlHttp.send(null)
-
}
-
-
function stateChanged()
-
{
-
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
-
{
-
document.getElementById("txtHint").innerHTML=xmlHttp.responseText
-
}
-
}function GetXmlHttpObject()
-
{
-
var xmlHttp=null;
-
try
-
{
-
// Firefox, Opera 8.0+, Safari
-
xmlHttp=new XMLHttpRequest();
-
}
-
catch (e)
-
{
-
//Internet Explorer
-
try
-
{
-
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
-
}
-
catch (e)
-
{
-
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
-
}
-
}
-
return xmlHttp;
-
}
-
getuser.php -
<?php
-
-
include("Database/database.php");
-
-
global $conn;
-
-
$q=$_GET["q"];
-
-
$sql="SELECT * FROM student_recording WHERE Stu_ID = $q";
-
-
$result = $conn->query($sql);
-
-
echo "<table border='1'>
-
<tr>
-
<th>Firstname</th>
-
<th>Class Code</th>
-
<th>Race</th>
-
</tr>";
-
-
while($row = $result->fetch_assoc())
-
{
-
echo "<tr>";
-
echo "<td>" . $row['Stu_Name'] . "</td>";
-
echo "<td>" . $row['Class_Code'] . "</td>";
-
echo "<td>" . $row['Stu_Race'] . "</td>";
-
echo "</tr>";
-
}
-
echo "</table>";
-
-
?>
-
 ak1dnar 1,584
Recognized Expert Top Contributor
Here the JavaScript and PHP files. Im only did some changes on PHP file.
I think both of you are using This Sample Application. jafarsalam,
If this is not your problem please post a comment on that. bluez,
Try this Coding.Note that you have merged xmlHttp variable and the ShowUSer function in your JS file.
And the ; Missing by end of xmlHttp Variable Declaration. -
var xmlHttp;
-
-
function showUser(str)
-
{
-
xmlHttp=GetXmlHttpObject()
-
if (xmlHttp==null)
-
{
-
alert ("Browser does not support HTTP Request")
-
return
-
}
-
var url="getuser.php"
-
url=url+"?q="+str
-
url=url+"&sid="+Math.random()
-
xmlHttp.onreadystatechange=stateChanged
-
xmlHttp.open("GET",url,true)
-
xmlHttp.send(null)
-
}
-
-
function stateChanged()
-
{
-
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
-
{
-
document.getElementById("txtHint").innerHTML=xmlHttp.responseText
-
}
-
}
-
-
function GetXmlHttpObject()
-
{
-
var xmlHttp=null;
-
try
-
{
-
// Firefox, Opera 8.0+, Safari
-
xmlHttp=new XMLHttpRequest();
-
}
-
catch (e)
-
{
-
//Internet Explorer
-
try
-
{
-
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
-
}
-
catch (e)
-
{
-
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
-
}
-
}
-
return xmlHttp;
-
}
-
Thanks ajaxrand...
It's work now. Sorry for never check it properly :)
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