Dear Sir
Earlier i did pagination by using PHP and MYSQl....but now i want to move on to mysqli . And when i converted MYSQL into MySQLi ...i am unable to fetch my data.
The code is given below. please tell how to convert this code to mysqli so that i can fetch my data from database.
<html>
<head>
<title>
Job Applications
</title>
<link href="pagination.css" rel="stylesheet" type="text/css" />
<link href="B_blue.css" rel="stylesheet" type="text/css" />
</head>
<body>
<?php
class PS_Pagination {
var $php_self;
var $rows_per_page = 10; //Number of records to display per page
var $total_rows = 0; //Total number of rows returned by the query
var $links_per_page = 5; //Number of links to display per page
var $append = ""; //Paremeters to append to pagination links
var $sql = "";
var $debug = false;
var $conn = false;
var $page = 1;
var $max_pages = 0;
var $offset = 0;
function PS_Pagination($connection, $sql, $rows_per_page = 10, $links_per_page = 5, $append = "") {
$this->conn = $connection;
$this->sql = $sql;
$this->rows_per_page = (int)$rows_per_page;
if (intval($links_per_page ) > 0) {
$this->links_per_page = (int)$links_per_page;
} else {
$this->links_per_page = 5;
}
$this->append = $append;
$this->php_self = htmlspecialchars($_SERVER['PHP_SELF'] );
if (isset($_GET['page'] )) {
$this->page = intval($_GET['page'] );
}
}
function paginate() {
//Check for valid mysql connection
if (! $this->conn || ! is_resource($this->conn )) {
if ($this->debug)
echo "MySQL connection missing<br />";
return false;
}
//Find total number of rows
$all_rs = @mysql_query($this->sql );
if (! $all_rs) {
if ($this->debug)
echo "SQL query failed. Check your query.<br /><br />Error Returned: " . mysql_error();
return false;
}
$this->total_rows = mysql_num_rows($all_rs );
@mysql_close($all_rs );
//Return FALSE if no rows found
if ($this->total_rows == 0) {
if ($this->debug)
echo "Query returned zero rows.";
return FALSE;
}
//Max number of pages
$this->max_pages = ceil($this->total_rows / $this->rows_per_page );
if ($this->links_per_page > $this->max_pages) {
$this->links_per_page = $this->max_pages;
}
//Check the page value just in case someone is trying to input an aribitrary value
if ($this->page > $this->max_pages || $this->page <= 0) {
$this->page = 1;
}
//Calculate Offset
$this->offset = $this->rows_per_page * ($this->page - 1);
//Fetch the required result set
$rs = @mysql_query($this->sql . " LIMIT {$this->offset}, {$this->rows_per_page}" );
if (! $rs) {
if ($this->debug)
echo "Pagination query failed. Check your query.<br /><br />Error Returned: " . mysql_error();
return false;
}
return $rs;
}
function renderFirst($tag = 'First') {
if ($this->total_rows == 0)
return FALSE;
if ($this->page == 1) {
return "$tag ";
} else {
return '<a href="' . $this->php_self . '?page=1&' . $this->append . '">' . $tag . '</a> ';
}
}
function renderLast($tag = 'Last') {
if ($this->total_rows == 0)
return FALSE;
if ($this->page == $this->max_pages) {
return $tag;
} else {
return ' <a href="' . $this->php_self . '?page=' . $this->max_pages . '&' . $this->append . '">' . $tag . '</a>';
}
}
function renderNext($tag = '>>') {
if ($this->total_rows == 0)
return FALSE;
if ($this->page < $this->max_pages) {
return '<a href="' . $this->php_self . '?page=' . ($this->page + 1) . '&' . $this->append . '">' . $tag . '</a>';
} else {
return $tag;
}
}
function renderPrev($tag = '<<') {
if ($this->total_rows == 0)
return FALSE;
if ($this->page > 1) {
return ' <a href="' . $this->php_self . '?page=' . ($this->page - 1) . '&' . $this->append . '">' . $tag . '</a>';
} else {
return " $tag";
}
}
function renderNav($prefix = '<span class="page_link">', $suffix = '</span>') {
if ($this->total_rows == 0)
return FALSE;
$batch = ceil($this->page / $this->links_per_page );
$end = $batch * $this->links_per_page;
if ($end == $this->page) {
//$end = $end + $this->links_per_page - 1;
//$end = $end + ceil($this->links_per_page/2);
}
if ($end > $this->max_pages) {
$end = $this->max_pages;
}
$start = $end - $this->links_per_page + 1;
$links = '';
for($i = $start; $i <= $end; $i ++) {
if ($i == $this->page) {
$links .= $prefix . " $i " . $suffix;
} else {
$links .= ' ' . $prefix . '<a href="' . $this->php_self . '?page=' . $i . '&' . $this->append . '">' . $i . '</a>' . $suffix . ' ';
}
}
return $links;
}
function renderFullNav() {
return $this->renderFirst() . ' ' . $this->renderPrev() . ' ' . $this->renderNav() . ' ' . $this->renderNext() . ' ' . $this->renderLast();
}
function setDebug($debug) {
$this->debug = $debug;
}
}
?>
</body>
</html>
