我在打印下面这个SELECT COUNT（*）页面的名字和姓氏时遇到问题。如果我删除了写着"'.$row[6].'..$row[7]."的代码，页面运行良好，只打印所选用户的计数点行，而不打印他们的名字和姓氏。如果我不删除这个代码，我会收到下面的消息：
*脚本"database.php"第177行出错：未定义的偏移量：6日期/时间：3-8-2012 12:27:03*
<?php # index.php
// Include the configuration file for error management and such.
require_once ('./includes/config.inc.php');
// Set the page title and include the HTML header.
$page_title = 'Individual Member Transactions';
include ('includes/header_admin_user.html');
// If no dealer_code variable exists, redirect the user.
if (!isset($_SESSION['admin_int_id'])) {
// Start defining the URL.
$url = 'http://' . $_SERVER['HTTP_HOST']
. dirname($_SERVER['PHP_SELF']);
// Check for a trailing slash.
if ((substr($url, -1) == '/') OR (substr($url, -1) == '\') ) {
$url = substr ($url, 0, -1); // Chop off the slash.
}
// Add the page.
$url .= '/login.php';
ob_end_clean(); // Delete the buffer.
header("Location: $url");
exit(); // Quit the script.
}
// Check for a valid user ID, through GET or POST.
if ( (isset($_GET['id'])) && (is_numeric($_GET['id'])) )
{ // Accessed through view_users.php
$id = $_GET['id'];
} elseif ( (isset($_POST['id'])) && (is_numeric($_POST['id'])) )
{ // Form has been submitted.
$id = $_POST['id'];
} else { // No valid ID, kill the script.
echo '<h1 id="mainhead">Page Error</h1>
<p class="error">This page has been accessed in error.</p><p><br /><br /></p>';
include ('./includes/header_admin_user.html');
exit();
}
?>
<h1 id="mainhead">Points Transactions</h1>
<div id="sidebar">
<div id="statusbar">
<p><span class="statusbar_highlight">Name:</span><br />
<?php echo " {$_SESSION['adminfirstname']} " . " {$_SESSION['adminsurname']}<br> ";?></p>
<p><span class="statusbar_highlight">Status:</span><br />
<?php echo " {$_SESSION['adminstatus']} ";?></p>
<p><span class="statusbar_highlight">Employer:</span><br />
<?php echo " {$_SESSION['adminemployer']} ";?></p>
</div>
</div>
<div id="maincontent_results">
<?php
require_once ('database.php'); // Connect to the db.
// Number of records to show per page:
$display = 1000;
// Determine how many pages there are.
if (isset($_GET['np'])) { // Already been determined.
$num_pages = $_GET['np'];
} else { // Need to determine.
// Count the number of records
$query = "SELECT COUNT(*) FROM tally_point, users WHERE tally_point.users_id = users.users_id ORDER BY tally_points_entry_date DESC";
$result = @mysql_query ($query);
$row = @mysql_fetch_array ($result, MYSQL_NUM);
$num_records = $row[0];
// Calculate the number of pages.
if ($num_records > $display) { // More than 1 page.
$num_pages = ceil($num_records/$display);
} else {
$num_pages = 1;
}
} // End of np IF.
// Determine where in the database to start returning results.
if (isset($_GET['s'])) {
$start = $_GET['s'];
} else {
$start = 0;
}
// Default column links.
$link1 = "{$_SERVER['PHP_SELF']}?sort=lna";
$link2 = "{$_SERVER['PHP_SELF']}?sort=fna";
$link3 = "{$_SERVER['PHP_SELF']}?sort=dra";
// Determine the sorting order.
if (isset($_GET['sort'])) {
// Use existing sorting order.
switch ($_GET['sort']) {
case 'lna':
$order_by = 'tally_points_in ASC';
$link1 = "{$_SERVER['PHP_SELF']}?sort=lnd";
break;
case 'lnd':
$order_by = 'tally_points_in DESC';
$link1 = "{$_SERVER['PHP_SELF']}?sort=lna";
break;
case 'fna':
$order_by = 'total ASC';
$link2 = "{$_SERVER['PHP_SELF']}?sort=fnd";
break;
case 'fnd':
$order_by = 'total DESC';
$link2 = "{$_SERVER['PHP_SELF']}?sort=fna";
break;
case 'dra':
$order_by = 'tally_points_entry_date ASC';
$link3 = "{$_SERVER['PHP_SELF']}?sort=drd";
break;
case 'drd':
$order_by = 'tally_points_entry_date DESC';
$link3 = "{$_SERVER['PHP_SELF']}?sort=dra";
break;
default:
$order_by = 'tally_points_entry_date DESC';
break;
}
// $sort will be appended to the pagination links.
$sort = $_GET['sort'];
} else { // Use the default sorting order.
$order_by = 'tally_points_entry_date DESC';
$sort = 'dra';
}
// Select tally rows for the selected user and the users details
$query = "SELECT ta.tally_points_in, ta.order_id, ta.total, DATE_FORMAT(ta.tally_points_entry_date, '%d-%m-%Y') AS dr, ta.users_id, us.users_id, us.users_first_name, us.users_surname
FROM tally_point AS ta, users AS us
WHERE ta.users_id=$id
AND us.users_id = ta.users_id
ORDER BY
".$order_by." LIMIT ".$start.", ".$display;
$result = @mysql_query ($query);
// Table header.
echo ' ' . $row[6] . ' ' . $row[7] . '
<table width="400" cellspacing="1" cellpadding="7">
<tr class="top">
<td align="left"><b><a href="' . $link2 . '">Date</a></b></td>
<td align="center"><b><a href="' . $link3 . '">Credit</a></b></td>
<td align="center"><b>Debit</b></td>
<td align="center"><b>Description</b></td>
</tr>
';
// Fetch and print all the transactions.
$bg = '#ffffff'; // Set the background color.
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
$pointsitem = $row['order_id'];
$bg = ($bg=='#eaeced' ? '#ffffff' : '#eaeced'); // Switch the background color.
//$entries = floor($row['ltd_entry_amount']/200);
echo '<tr bgcolor="' . $bg . '">';
echo '<td align="left">' . $row['dr'] . '</td>';
echo '<td align="center"><strong>' . $row['tally_points_in'] . '</strong></td> ';
echo '<td align="center">' . $row['total'] . '</td>';
// products the footer, close the table, and the form.
$str = '<td align="center">';
if($pointsitem > '0') {
$str .='<strong><a href="view-ind-order.php?id=' . $pointsitem . '">Order Details</a></strong></td></tr>';
}
else {
$str .='Monthly Points Update</td></tr>';
}
echo $str;
}
echo '</table>';
mysql_free_result ($result); // Free up the resources.
mysql_close(); // Close the database connection.
// Make the links to other pages, if necessary.
if ($num_pages > 1) {
echo '<br /><p>';
// Determine what page the script is on.
$current_page = ($start/$display) + 1;
// If it's not the first page, make a Previous button.
if ($current_page != 1) {
echo '<a href="view_points_2.php?s=' . ($start - $display) . '&np=' .
$num_pages . '&sort=' . $sort .'">Previous</a> ';
}
// Make all the numbered pages.
for ($i = 1; $i <= $num_pages; $i++) {
if ($i != $current_page) {
echo '<a href="view_points_2.php?s=' . (($display * ($i - 1))) .
'&np=' . $num_pages . '&sort=' . $sort .'">' . $i . '</a> ';
} else {
echo $i . ' ';
}
}
// If it's not the last page, make a Next button.
if ($current_page != $num_pages) {
echo '<a href="view_points_2.php?s=' . ($start + $display) . '&np=' .
$num_pages . '&sort=' . $sort .'">Next</a> ';
}
echo '</p>';
} // End of links section.
?>
<br class="clearboth" />
</div>
</div>
</div>
<?php
include ('./includes/footer_admin_user.html'); // Include the HTML footer.
?>
您需要执行以下操作：
$row = @mysql_fetch_array ($result, MYSQL_NUM);
在错误之前的行上。
现在它给你带来了一个错误，因为你上次设置$row是在顶部的这段代码中：
// Count the number of records
$query = "SELECT COUNT(*) FROM tally_point, users WHERE tally_point.users_id = users.users_id ORDER BY tally_points_entry_date DESC";
$result = @mysql_query ($query);
$row = @mysql_fetch_array ($result, MYSQL_NUM);
在这种情况下，$row仅具有一个元素（$row[0]）。