Simple Way of Doing Paging in Php
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Transcript of Simple Way of Doing Paging in Php
Simple way of doing paging in php:
<html>
<head>
<title>Paging Next Previous Buttons</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-
1">
</head>
<body>
<?php
include 'config.php';
include 'openmytest.php';
// rows per page
$rowsPerPage = 3;
// if $_GET
if(isset($_GET['page']))
{
$pageNum= $_GET['page'];
}
else
$pageNum = 1;
// preceding rows
$previousRows =($pageNum - 1) * $rowsPerPage;
// the first, optional value of LIMIT is the start position
//the next required value is the number of rows to retrieve
$query = "SELECT Users.ID, Name,Pass,Perm,EMail,Date,UID
FROM Users,Emails WHERE Users.ID=UID LIMIT $previousRows, $rowsPerPage";
$result = mysql_query($query) or die('Error couldn\'t get the data').mysql_error();
echo "<table border=1>\n";
echo "<tr><th>ID</th><th>Name</th><th>Password</th><th>Perm</th><th>Email</th>
<th>Date</th></tr>";
// print the results
while(list($id,$name,$pass,$perm,$email,$date) = mysql_fetch_array($result))
{
echo "<tr><td>$id</td><td>$name</td><td>$pass</td><td>$perm</td><td>$email</td>
<td>$date</td></tr>";
}
echo '</table>';
// Find the number of rows in the query
$query = "SELECT COUNT(Name) AS numrows FROM Users";
$result = mysql_query($query) or die('Error, couldn\'t get count title=\"$page\"').mysql_error();
//use an associative array
$row = mysql_fetch_assoc($result);
$numrows = $row['numrows'];
// find the last page number
$lastPage = ceil($numrows/$rowsPerPage);
//we use ceil which rounds up the result, because if we have 4.2 as an answer, we'd need 5 pages.
$phpself = $_SERVER['PHP_SELF'];
//if the current page is greater than 1, that is, it isn't the first page
//then we print first and previous links
if ($pageNum > 1)
{
$page = $pageNum - 1;
$prev = " <a href=\"$phpself?page=$page\" title=\"Page $page\">[Back]</a> ";
$first = " <a href=\"$phpself?page=1\" title=\"Page 1\">[First Page]</a> ";
}
else
//otherwise we do not print a link, because the current page is
//the first page, and there are no previous pages
{
$prev = ' [Back] ';
$first = ' [First Page] ';
}
// We print the links for the next and last page only if the current page
//isn't the last page
if ($pageNum < $lastPage)
{
$page = $pageNum + 1;
$next = " <a href=\"$phpself?page=$page\" title=\"Page $page\">[Next]</a> ";
$last = " <a href=\"$phpself?page=$lastPage\" title=\"Page $lastPage\">[Last Page]</a> ";
}
//the current page is the last page, so we don't print links for
//the last and next pages, there is of course no next page.
else
{
$next = ' [Next] ';
$last = ' [Last Page] ';
}
//We print the links depending on our selections above
echo $first . $prev . " Showing page <bold>$pageNum</bold> of
<bold>$lastPage</bold> pages " . $next . $last;
include 'closedb.php';
?>
</body>
</html>
