Use of undefined constant id - assumed
Question
Hi i am getting this message on my index.php
Notice: Use of undefined constant id - assumed 'id' in C:\\xampp\\htdocs\\practice\\index.php on line 70
Notice: Use of undefined constant department - assumed 'department' in C:\\xampp\\htdocs\\practice\\index.php on line 71
Notice: Use of undefined constant custodian - assumed 'custodian' in C:\\xampp\\htdocs\\practice\\index.php on line 72
Notice: Use of undefined constant location - assumed 'location' in C:\\xampp\\htdocs\\practice\\index.php on line 73
Notice: Use of undefined constant brand - assumed 'brand' in C:\\xampp\\htdocs\\practice\\index.php on line 74
Notice: Use of undefined constant model - assumed 'model' in C:\\xampp\\htdocs\\practice\\index.php on line 75
Notice: Use of undefined constant hardwaresn - assumed 'hardwaresn' in C:\\xampp\\htdocs\\practice\\index.php on line 76
Notice: Use of undefined constant hardisk - assumed 'hardisk' in C:\\xampp\\htdocs\\practice\\index.php on line 77
Notice: Use of undefined constant processor - assumed 'processor' in C:\\xampp\\htdocs\\practice\\index.php on line 78
Notice: Use of undefined constant ram - assumed 'ram' in C:\\xampp\\htdocs\\practice\\index.php on line 79
Notice: Use of undefined constant monitor - assumed 'monitor' in C:\\xampp\\htdocs\\practice\\index.php on line 80
Notice: Use of undefined constant actualos - assumed 'actualos' in C:\\xampp\\htdocs\\practice\\index.php on line 81
Notice: Use of undefined constant msoffice - assumed 'msoffice' in C:\\xampp\\htdocs\\practice\\index.php on line 82
Notice: Use of undefined constant supplier - assumed 'supplier' in C:\\xampp\\htdocs\\practice\\index.php on line 83
Notice: Use of undefined constant invoicenumber - assumed 'invoicenumber' in C:\\xampp\\htdocs\\practice\\index.php on line 84
Notice: Use of undefined constant purchasedate - assumed 'purchasedate' in C:\\xampp\\htdocs\\practice\\index.php on line 85
Notice: Use of undefined constant warranty - assumed 'warranty' in C:\\xampp\\htdocs\\practice\\index.php on line 86
Id Deparment Custodian Location Brand Model Hardware SN Case/Monitor HardDisk Processor Ram Monitor Actual OS MS Office Supplier Invoice No. Purchase Date Warranty Line to Edit Line to Delete
1 Motor Ibrahim Abu Lebda 1st Floor Lenovo MTM 10A9-003CAX PC08KULS/ CNC137R2N1 1TB Intel Core i7 8GB 20'' LED HP Win 7 Pro 2013 0000-00-00 Out Of Warranty Edit Delete
Add New Record
and here is my codes please help me to identify what is not declare.
<html>
<head>
<title>IT Equipment Inventory System</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
<h1><center>IT Equipment Inventory System</center></h1>
<?php
echo "<marquee>" . "Today is " . date("m/d/Y") . "</marquee>";
echo "<marquee>" . "Today is " . date("l") . "</marquee>";
?>
<?php
// connect to the database
include 'db_connection.php';
$conn = OpenCon();
//echo "Connected Successfully";
// get the records from the database
$result = mysqli_query($conn, "SELECT * FROM tb1");
CloseCon($conn);
// display records in a table
echo "<p><b>View All</b> | <a href='view-paginated.php?page=1'>View Paginated</a></p>";
echo "<table border='1' cellpadding='10'>";
// set table headers
echo "<tr>
<th>Id</th>
<th>Deparment</th>
<th>Custodian</th>
<th>Location</th>
<th>Brand</th>
<th>Model</th>
<th>Hardware SN Case/Monitor</th>
<th>HardDisk</th>
<th>Processor</th>
<th>Ram</th>
<th>Monitor</th>
<th>Actual OS</th>
<th>MS Office</th>
<th>Supplier</th>
<th>Invoice No.</th>
<th>Purchase Date</th>
<th>Warranty</th>
<th>Line to Edit</th>
<th>Line to Delete</th>
</tr>";
while($row = mysqli_fetch_array( $result )) {
// set up a row for each record
echo '<tr>';
echo '<td>' . $row[id] . '</td>';
echo '<td>' . $row[department] . '</td>';
echo '<td>' . $row[custodian] . '</td>';
echo '<td>' . $row[location] . '</td>';
echo '<td>' . $row[brand] . '</td>';
echo '<td>' . $row[model] . '</td>';
echo '<td>' . $row[hardwaresn] . '</td>';
echo '<td>' . $row[hardisk] . '</td>';
echo '<td>' . $row[processor] . '</td>';
echo '<td>' . $row[ram] . '</td>';
echo '<td>' . $row[monitor] . '</td>';
echo '<td>' . $row[actualos] . '</td>';
echo '<td>' . $row[msoffice] . '</td>';
echo '<td>' . $row[supplier] . '</td>';
echo '<td>' . $row[invoicenumber] . '</td>';
echo '<td>' . $row[purchasedate] . '</td>';
echo '<td>' . $row[warranty] . '</td>';
echo '<td><a href="edit.php?id=' . $row['id'] . '">Edit</a></td>';
echo '<td><a href="delete.php?id=' . $row['id'] . '">Delete</a></td>';
echo '</tr>';
}
echo "</table>";
?>
<a href="New.php">Add New Record</a>
</body>
</html>
1 answers
solution1
5 ACCPTED 2017-11-08 04:40:28
You forgot to add quotes around index names inside while() code.
For example:- $row[id] need to be $row['id']
Do like below:-
while($row = mysqli_fetch_assoc( $result )) {
// set up a row for each record
echo '<tr>';
echo '<td>' . $row['id'] . '</td>';
echo '<td>' . $row['department'] . '</td>';
echo '<td>' . $row['custodian'] . '</td>';
echo '<td>' . $row['location'] . '</td>';
echo '<td>' . $row['brand'] . '</td>';
echo '<td>' . $row['model'] . '</td>';
echo '<td>' . $row['hardwaresn'] . '</td>';
echo '<td>' . $row['hardisk'] . '</td>';
echo '<td>' . $row['processor'] . '</td>';
echo '<td>' . $row['ram'] . '</td>';
echo '<td>' . $row['monitor'] . '</td>';
echo '<td>' . $row['actualos'] . '</td>';
echo '<td>' . $row['msoffice'] . '</td>';
echo '<td>' . $row['supplier'] . '</td>';
echo '<td>' . $row['invoicenumber'] . '</td>';
echo '<td>' . $row['purchasedate'] . '</td>';
echo '<td>' . $row['warranty'] . '</td>';
echo '<td><a href="edit.php?id=' . $row['id'] . '">Edit</a></td>';
echo '<td><a href="delete.php?id=' . $row['id'] . '">Delete</a></td>';
echo '</tr>';
}
Note:- use mysqli_fetch_assoc() instead of mysqli_fetch_array , so that associative array only will come.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.