<?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;
/**
* Constructor
*
* @param resource $connection Mysql connection link
* @param string $sql SQL query to paginate. Example : SELECT * FROM users
* @param integer $rows_per_page Number of records to display per page. Defaults to 10
* @param integer $links_per_page Number of links to display per page. Defaults to 5
* @param string $append Parameters to be appended to pagination links
*/
function PS_Pagination($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'] );
}
}
/**
* Executes the SQL query and initializes internal variables
*
* @access public
* @return resource
*/
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;
}
/**
* Display the link to the first page
*
* @access public
* @param string $tag Text string to be displayed as the link. Defaults to 'First'
* @return string
*/
function renderFirst($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> ';
}
}
/**
* Display the link to the last page
*
* @access public
* @param string $tag Text string to be displayed as the link. Defaults to 'Last'
* @return string
*/
function renderLast($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>';
}
}
/**
* Display the next link
*
* @access public
* @param string $tag Text string to be displayed as the link. Defaults to '>>'
* @return string
*/
function renderNext($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;
}
}
/**
* Display the previous link
*
* @access public
* @param string $tag Text string to be displayed as the link. Defaults to '<<'
* @return string
*/
function renderPrev($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 " $tag";
}
}
/**
* Display the page links
*
* @access public
* @return string
*/
function renderNav($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;
}
/**
* Display full pagination navigation
*
* @access public
* @return string
*/
function renderFullNav() {
return $this->renderFirst() . ' ' . $this->renderPrev() . ' ' . $this->renderNav() . ' ' . $this->renderNext() . ' ' . $this->renderLast();
}
/**
* Set debug mode
*
* @access public
* @param bool $debug Set to TRUE to enable debug messages
* @return void
*/
function setDebug($debug) {
$this->debug = $debug;
}
}
?>
Create another page where you want to implement pagination.
<html>
<body>
<table width="450" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="sampleform" action="<?php print $_SERVER['PHP_SELF'] ?>" method="POST">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr><td width="78"><b>Requisition_Status</td>
<td width="6">:</td>
<td width="294"><select name="rstat">
<option selected value="">Select Status</option>
<option value="PENDING">PENDING
<option value="APPROVED">APPROVED
<option value="RECEIVED">RECEIVED</option>
</select></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td><input type="submit" name="submit" value="Check Status"></td><td><input type="reset" value="Reset"></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
<table width="450" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<?php
$submit=$_POST['submit'];
$rstat=$_POST['rstat'];
if($_POST['rstat']!="")
{
$_SESSION['rstat']=$rstat;
$reqstat=$_SESSION['rstat'];
}
else
{
$reqstat=$_SESSION['rstat'];
}
if (isset($reqstat))
{
//Include the PS_Pagination class
include('pagination.php');
//Connect to mysql db
$conn = mysql_connect('localhost','root','password');
if(!$conn) die("Failed to connect to database!");
$status = mysql_select_db('database', $conn);
if(!$status) die("Failed to select database!");
$aaa="SELECT * FROM requisition WHERE approvestatus='$reqstat' or receivingstatus='$reqstat' ORDER BY date ASC";
$query = mysql_query("SELECT * FROM requisition WHERE approvestatus='$reqstat' or receivingstatus='$reqstat' ORDER BY date ASC");
$number=mysql_num_rows($query);
echo "<b>Total Records Found Under This Requisition Status: </font><font color=\"red\">[ ". $number." ]</font></b><br>";
/*
* Create a PS_Pagination object
*
* $conn = MySQL connection object
* $sql = SQl Query to paginate
* 10 = Number of rows per page
* 5 = Number of links
* "param1=valu1¶m2=value2" = You can append your own parameters to paginations links
*/
$pager = new PS_Pagination($conn, $aaa, 4, 5, "param1=valu1¶m2=value2");
/*
* Enable debugging if you want o view query errors
*/
$pager->setDebug(true);
/*
* The paginate() function returns a mysql result set
* or false if no rows are returned by the query
*/
print "<b>Searching Requisition Status: <font color=\"green\" size=\"2\"> <b> " .$reqstat."</font>";
$rs = $pager->paginate();
if(!$rs)
{
print " <a href=\"main.php\"><font color=\"blue\"><b> BACK <b></font></a>";
die(mysql_error());
}
while($row = mysql_fetch_assoc($rs))
{
$date=$row["date"];
$requestby=$row["requestby"];
$requestcenter=$row["requestcenter"];
$requestdtl=$row["requestdtl"];
$approvestatus=$row["approvestatus"];
$receivingstatus=$row["receivingstatus"];
$task_id=$row["task_id"];
$approvedate=$row["approvedate"];
$receivingdate=$row["receivingdate"];
print "<table width=\"100%\" id=\"myTable\" border=\"1\" align=\"center\">";
print "<tr bgcolor=brown border=1><td width=\"150\"><b><font size=\"2\" color=\"white\"><p align=\"center\">DATE</td>";
print "<td width=\"100\"><b><font size=\"2\" color=\"white\"><p align=\"center\">REQUEST BY</td>";
print "<td width=\"100\"><b><font size=\"2\" color=\"white\"><p align=\"center\">CENTER</td>";
print "<td width=\"80\"><b><font size=\"2\" color=\"white\"><p align=\"center\">APPROVED</td>";
print "<td width=\"80\"><b><font size=\"2\" color=\"white\"><p align=\"center\">RECEIVING</td>";
print "</tr>";
print "<tr>";
print "<td width=\"150\"><b><font size=\"2\" color=black><p align=\"center\">".$date."</td>";
print "<td width=\"150\"><b><font size=\"2\" color=black><p align=\"center\">".$requestby."</td>";
print "<td width=\"100\"><b><font size=\"2\" color=black><p align=\"center\">".$requestcenter."</td>";
print "<td width=\"80\"><b><font size=\"2\" color=black><p align=\"center\">".$approvestatus."</td>";
print "<td width=\"80\"><b><font size=\"2\" color=black><p align=\"center\">".$receivingstatus."</td>";
print "<td width=\"80\"><form action=\"detailreq.php\" method=\"POST\">";
print "<input type=\"hidden\" name=\"task_id\" value=$task_id>";
print "<input type=\"image\" id=\"enter\" name=\"submit: width=\"15\" height=\"15\" src=\"read_more.jpg\">";
print "</tr>";
print "</form>";
echo $row['image'],"\n";
print "</table>";
}
//Display the full navigation in one go
//echo $pager->renderFullNav();
echo "<br />\n";
/*
* Or you can display the individual links for more
* control over HTML rendering.
*
*/
//Display the link to first page: First
echo $pager->renderFirst();
//Display the link to previous page: <<
echo $pager->renderPrev();
/*
* Display page links: 1 2 3
* $prefix = Will be prepended to the page link (optional)
* $suffix = Will be appended to the page link (optional)
*
*/
echo $pager->renderNav('<span>', '</span>');
//Display the link to next page: >>
echo $pager->renderNext();
//Display the link to last page: Last
echo $pager->renderLast();
}
?>
</table>
</body>
</html>
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