update query not work - php

Question

This is the full code of the page which i am using to update data.I Tried many time but it still not updating values in database..also tried to echo but still not updating
<?php
session_start();
include '../func-tion/func.php';
if(isset($_SESSION['m_uname']) && isset($_SESSION['m_pass']))
{
?>
<?php
if(isset($_POST['subup']))
{
$SQL="update appid set android_appid='".$_POST['and_a']."' , iphone_appid='".$_POST['iph_a']."' , ipad_appid='".$_POST['ipa_a']."' where u_name='".$_GET['name']."'";
echo $SQL;
}
?>
<?php
$main_qry=mysql_query("select * from users where u_name='".$_GET['name']."'");
$main_fetch=mysql_fetch_assoc($main_qry);
?>
<center><h2 class="art-postheader">Edit details of <b></b></h2></center><br/><br/>
<table align="center">
<tr align="center">
<td style="height: 60px; font-family: Helvetica,Arial,sans-serif; font-weight: bold;">Username:<br>
<input type="text" name="u_name" style="width: 300px;" value="<?php echo $main_fetch['u_name']?>"></td>
</tr>
<tr align="center">
<td style="height: 60px; font-family: Helvetica,Arial,sans-serif; font-weight: bold;">Email:<br>
<input type="text" name="u_email" style="width: 300px;" value="<?php echo $main_fetch['u_email']?>"></td>
</tr><?php
$main_qrys=mysql_query("select * from appid where u_name='".$_GET['name']."'");
$row=mysql_fetch_assoc($main_qrys);
?> <form name="user" method="post" action="users_edit.php" onSubmit="return valid();">
<tr align="center">
<td style="width: 100px; font-family: Helvetica,Arial,sans-serif; font-weight: bold;">Android Appid:<br>
<input type="text" name="and_a" style="width: 300px;" value="<?php echo $row['android_appid']?>"></td>
</tr>
<tr align="center">
<td style="width: 100px; font-family: Helvetica,Arial,sans-serif; font-weight: bold;">Iphone Appid:<br>
<input type="text" name="iph_a" style="width: 300px;" value="<?php echo $row['iphone_appid']?>"></td>
</tr>
<tr align="center">
<td style="width: 100px; font-family: Helvetica,Arial,sans-serif; font-weight: bold;">Iphone(ipad) Appid:<br>
<input type="text" name="ipa_a" style="width: 300px;" value="<?php echo $row['ipad_appid']?>"></td>
</tr>
<tr align="center">
<td style="height: 28px;">
<button name="subup" type="submit">Edit</button>
</td>
</tr>
</form>
</table>
</div>
</div>
</div>
</div>
</div>
</body></html>
<?php
}
else
{
header("Location:notserver.php?l=fake");
}
?>
if anyone know..Please help me i will be very thankfull to him

Answer 1

Use the query:
UPDATE appid
set android_appid='$android_appid', iphone_appid='$iphone_appid', ipad_appid='$ipad_appid'
where u_name IN (select u_name from users where u_id = $_GET[id])
I wonder why you're using $_GET['id'] rather than $_POST['id'] like the other parameters in your script. Make sure that's correct. And you should check for errors from mysql_query(); if it returns false, print mysql_error() to see the reason.