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POphp UPDATE QUERY fail my_fetch_array
 

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    <p>I am trying to update my supplier information within a form</p> <p>Here is my my code for the editsupplier form</p> <pre><code>&lt;?php $SupplierID = $_GET['SupplierID'] = $row['SupplierID']; //Connect and select a database mysql_connect ("localhost", "root", ""); mysql_select_db("supplierdetails"); //Run query $result1 = mysql_query("SELECT * FROM suppliers WHERE SupplierID=$SupplierID"); while($row = mysql_fetch_array($result1)){ $SupplierID = $_GET['SupplierID'] = $row['SupplierID']; $SupplierName = $row['SupplierName']; $Currency = $row['Currency']; $Location = $row['Location']; $ContactNumber = $row['ContactNumber']; $Email = $row['Email']; } ?&gt; &lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1- strict.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"&gt; &lt;head&gt; &lt;meta http-equiv="content-type" content="text/html; charset=utf-8" /&gt; &lt;meta name="description" content="" /&gt; &lt;meta name="keywords" content="" /&gt; &lt;meta name="author" content="" /&gt; &lt;link rel="stylesheet" type="text/css" href="style.css" media="screen" /&gt; &lt;title&gt;Harrison Spinks&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;div id="wrapper"&gt; &lt;?php include('includes/header.php'); ?&gt; &lt;?php include('includes/nav.php'); ?&gt; &lt;div id="content"&gt; &lt;h3&gt;&lt;center&gt;Edit Supplier Information&lt;/center&gt;&lt;/h3&gt; &lt;p&gt;Please enter all the following details to edit a supplier&lt;/p&gt; &lt;/div&gt; &lt;div&gt; &lt;br&gt; &lt;/br&gt; &lt;form action="Edit_Supp.php" method="post"&gt; &lt;br&gt; &lt;/br&gt; &lt;input type="hidden" name="SupplierID" value="&lt;?php echo $SupplierID;?&gt;"/&gt; Supplier Name: &lt;input type="text" name="SupplierName" value="&lt;?php echo $SupplierName ;?&gt;" /&gt; &lt;br&gt; &lt;/br&gt; Currency: &lt;input type="text" name="Currency" value="&lt;?php echo $Currency ;?&gt;" /&gt; &lt;br&gt; &lt;/br&gt; Location: &lt;input type="text" name="Location" value="&lt;?php echo $Location ;?&gt;" /&gt; &lt;br&gt; &lt;/br&gt; Contact Number:&lt;input type="text" name="ContactNumber" value="&lt;?php echo $ContactNumber ;?&gt;" /&gt; &lt;br&gt; &lt;/br&gt; Email:&lt;input type="text" name="Email" value="&lt;?php echo $Email ;?&gt;" /&gt; &lt;br&gt; &lt;/br&gt; &lt;input type="submit" value= "Edit Supplier Information"/&gt; &lt;/form&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>Errors are:</p> <pre><code>Notice: Undefined variable: row in E:\xampp\htdocs\EditSupForm.php on line 2 Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in E:\xampp\htdocs\EditSupForm.php on line 8 </code></pre> <p>This is the code behind the form:</p> <pre><code>&lt;?php $con = mysql_connect("localhost", "root", ""); mysql_select_db("supplierdetails"); if (!$con) { die('Could not connect: ' . mysql_error()); } //Run a query $SupplierID= $_POST['SupplierID'] = $row ["SupplierID"]; $result1 = mysql_query ("SELECT * FROM suppliers WHERE SupplierID= '".$SupplierID."'") or die(mysql_error()); $row = mysql_fetch_array($result1); $SupplierID = $_POST['SupplierID'] = $row ["SupplierID"]; $SupplierName = $_POST['SupplierName']; $Currency = $_POST['Currency']; $Location = $_POST['Location']; $ContactNumber = $_POST['ContactNumber']; $Email = $_POST['Email']; $SupplierID = $row['SupplierID']; $query = "UPDATE suppliers SET SupplierID = '".$SupplierID."', SupplierName= '".$SupplierName."', Currency = '".$Currency."', Location = '".$Location."', ContactNumber = '".$ContactNumber."', Email = '".$Email."' WHERE SupplierID = '".$id."'"; $result1 = mysql_query($query); //Check whether the query was successful or not if($result1) { echo "Supplier Updated"; header ("Location: Supplier.php"); } else { die ("Query failed"); } ?&gt; </code></pre>
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