Array Paging

Hi friends..below is the complete php code for array pagination. copy the code, paste it in a new file named array_paging.php and run it on your local server.

Comments are written to understand the code.

Please write any suggestions or improvements you have to implement in this code.


<?php
//This is the temporary array created for this example. In your case the values would be coming from database
$DataArray = array('value1','value2','value3','value4','value5','value6','value7','value8','value9','value10','value11','value12','value13','value14','value15','value16','value17');

//take the count of the array
$cnt = count($DataArray);

//get the page number from the url
if($_REQUEST['pge_no']){
$pge_no=$_REQUEST['pge_no'];
}else{
$pge_no=1; //set page number to 1 if not specified
}
if($_REQUEST['lim']){
$lim=$_REQUEST['lim'];
}else{
$lim=2; //Number of records to display per page.
}


if(!$cnt)
{
$cnt=0;
}
//calculate the number of pages
$pages = ceil($cnt/$lim);
if($pge_no>$pages)
{
$pge_no=$pages;
}
$pg_last=$pge_no*$lim; //calculate the last page value
$pg_start=$pg_last-($lim-1); //calculate the first page value


$counter=0;
//create the sets of pages eg. page number 1 will have 1,2,3 records, 2 will have 4,5,6 records...
for($l=1;$l<=$pages;$l++)
{

for($m=1;$m<=$lim;$m++)
{
$pagesets[$l][]=$counter;
$counter++;
}

}

//display the records
for($k=0;$k<count($DataArray);$k++)
{
//display the records only for the particular page
if(in_array($k,$pagesets[$pge_no]))
{
echo $DataArray[$k]."<br><hr/>";
}
}

//this is the number of pages to be displayed at a time between next and previous buttons
$NumberOfPagesToShow = 3;
if($pages>1){
$sets = ceil($pages/$NumberOfPagesToShow);

//createing first and last page numbers
for($j=1;$j<=$sets;$j++)
{
$lastpage = $j*$NumberOfPagesToShow;
$firstpage = $lastpage-$NumberOfPagesToShow+1;

$nextPageValue = $pge_no + 1; //calculate value of next button
if($nextPageValue>$pages)
{
$nextPageValue=$pages;
}
$next = "<a href='array_paging.php?pge_no=$nextPageValue'>Next »</a>"; //create next button

//create value of last button
$ending = $lastpage+1;
if($ending>$pages)
{
$ending = $pages;
}
$end = "<a href='array_paging.php?pge_no=$ending'>»</a>"; //Create last button

$prevPageValue = $pge_no - 1; //calculate value of previous button
if($prevPageValue<=0)
{
$prevPageValue=1;
}
$prev = "<a href='array_paging.php?pge_no=$prevPageValue'>« Previous</a>"; //create previous button

//create value of first button
$starting = $firstpage-1;
if($starting < 1)
{
$starting = 1;
}
$start = "<a href='array_paging.php?pge_no=$starting'>«</a>";//create first button

if($pge_no>=$firstpage && $pge_no<=$lastpage)
{
break;
}
}
echo $start." "; //display first button
echo $prev." "; //display previous button
//Display pages
for ($x=$firstpage;$x<=$lastpage;$x++){
if($x==$pge_no){
echo "<span style='color:red'>".$x."</span> ";
}else{
if($x<=$pages)
{
echo "<a href='array_paging.php?pge_no=$x'>".$x."</a> ";
}
}
}
echo $next." "; //display next button
echo $end." "; //display last button
echo "<br><br>";
}

?>