[PHP] pobierz, plaintext 
<?php
 
class Pager
{
 public $Package=Array(); 
 public $Redirect=False;
 public $Allowed=Array('Previous' => False,
					   'Next' => False);
 
 private $Data=Array(); 
 private $DisplayPerPage=15;
 private $CurrentPage=0;
 private $Marker='page';
 private $PagesAmount=0;
 
 public function __construct($DisplayPerPage=Null, $Marker=Null)
 {
  if(!is_null($DisplayPerPage))
   if(is_int($DisplayPerPage))
	$this->DisplayPerPage=$DisplayPerPage;
   else
	$this->Error('Class Pager needs integer value in first argument.', True);
 
  if(!is_null($Marker))
   if(is_string($Marker) || is_int($Marker))
	$this->Marker=$Marker;
   else
	$this->Error('Class Pager needs string or integer value in third argument.', True);
 
  $this->GetCurrentPage();
 }
 
 public function ReturnPart($Data)
 {
  $this->Assign($Data);
 
  if($this->CurrentPage<=$this->PagesAmount && $this->CurrentPage>=0)
  {
   $FirstElement=$this->CurrentPage*$this->DisplayPerPage;
   $LastElement=$FirstElement+$this->DisplayPerPage-1;
   $Counter=0;
   
   foreach($this->Data as $Key => $Value)
   {
	if($Counter>=$FirstElement && $Counter<=$LastElement)
	 $this->Package[$Key]=$Value;
	$Counter++;
   }
   
   return $this->Package;
  }
  else
   if($this->Redirect==True)
	hreader('Location: '.$this->Redirect);
   else
	$this->Error('Page '.$this->CurrentPage.' doesn't exists.');
 }
 
 private function Assign($Data)
 {
  if(is_array($Data))
   $this->Data=$Data;
  else
   $this->Error('Method Pager::Assign needs array value in first argument.', True);
   
  $this->PagesAmount=ceil(count($Data)/$this->DisplayPerPage)-1;
  $this->Allowing();
 }
 
 private function GetCurrentPage()
 {
  if(is_numeric($_GET[$this->Marker]))
   $this->CurrentPage=$_GET[$this->Marker];
  else
   $this->CurrentPage=0;
 }
 
 private function Allowing()
 {
  if($this->CurrentPage>0 && $this->CurrentPage<=$this->PagesAmount)
   $this->Allowed['Previous']=True;
  if($this->CurrentPage>=0 && $this->CurrentPage<$this->PagesAmount)
   $this->Allowed['Next']=True;
 }
 
 private function Error($Communicate, $Die=False)
 {
  if($Die==True)
   die('<code>'.$Communicate.'</code>');
  else
   echo('<code>'.$Communicate.'</code>');
 }
}
 
?>
[PHP] pobierz, plaintext 

[PHP] pobierz, plaintext 
<?php
 
include('pager.class.php');
$Pager=new Pager();
 
$Array=$_SERVER;
$Part=$Pager->ReturnPart($Array);
 
echo '<pre>';
print_r($Part);
print_r($Pager->Allowed);
echo '</pre>';
 
?>
[PHP] pobierz, plaintext