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POUndefined index for updating database
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  1. POUndefined index for updating database
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    copied!<p>i cant seem to find what is wrong with my code. </p> <p>i just want to have a not bias opinion about since for me its perfect well its not xD. </p> <pre><code>&lt;?php require("common.php"); if(empty($_SESSION['user'])) { header("Location: login.php"); die("Redirecting to login.php"); } if(!empty($_POST)) { if($_POST['eID'] != $_SESSION['user']['eID']) { $query = " SELECT 1 FROM users WHERE eID = :eID "; $query_params = array( ':eID' =&gt; $_POST['eID'] ); try { $stmt = $db-&gt;prepare($query); $result = $stmt-&gt;execute($query_params); } catch(PDOException $ex) { die("Failed to run query: " . $ex-&gt;getMessage()); } $row = $stmt-&gt;fetch(); if($row) { die("This employee ID is already registered"); } } if(!empty($_POST['password'])) { $salt = dechex(mt_rand(0, 2147483647)) . dechex(mt_rand(0, 2147483647)); $password = hash('sha256', $_POST['password'] . $salt); for($round = 0; $round &lt; 65536; $round++) { $password = hash('sha256', $password . $salt); } } else { $password = null; $salt = null; } $query_params = array( ':eID' =&gt; $_POST['eID'], ':user_id' =&gt; $_SESSION['user']['id'], ); if($password !== null) { $query_params[':password'] = $password; $query_params[':salt'] = $salt; } $query = " UPDATE users SET eID = :eID "; if($password !== null) { $query .= " , password = :password , salt = :salt "; } $query .= " WHERE id = :user_id "; try { $stmt = $db-&gt;prepare($query); $result = $stmt-&gt;execute($query_params); } catch(PDOException $ex) { die("Failed to run query: " . $ex-&gt;getMessage()); } $_SESSION['user']['eID'] = $_POST['eID']; header("Location: private.php"); die("Redirecting to private.php"); } ?&gt; &lt;h1&gt;Edit Account&lt;/h1&gt; &lt;form action="edit_account.php" method="post"&gt; Username:&lt;br /&gt; &lt;b&gt;&lt;?php echo htmlentities($_SESSION['user']['username'], ENT_QUOTES, 'UTF-8'); ?&gt;&lt;/b&gt; &lt;br /&gt;&lt;br /&gt; EmployeeID:&lt;br /&gt; &lt;input type="text" name="eID" value="&lt;?php echo htmlentities($_POST['eID'], ENT_QUOTES, 'UTF-8'); ?&gt;" /&gt; &lt;br /&gt;&lt;br /&gt; Password:&lt;br /&gt; &lt;input type="password" name="password" value="" /&gt;&lt;br /&gt; &lt;i&gt;(leave blank if you do not want to change your password)&lt;/i&gt; &lt;br /&gt;&lt;br /&gt; &lt;input type="submit" value="Update Account" /&gt; &lt;/form&gt; </code></pre> <p>its a code wherein it will alter the data in my database.it seems that i have an error with "eID"</p>
 

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