<?php class pagination {
	public $con;
	public $query;
	public $thispage;
	public $numperpage;
	public $offset;
	public $extravariables;
	public $numrecords=0;
	public $lastpage;
	public $numpages=0;
	public $builtupquery;
	public $type='normal'; // dropdown or normal
	public $pagingdistance='2'; // //it is the distance of upper and lower part of the page number,can be 0 to show all the records
	public $pagemin; // minimum page offset , ex 0
	public $pagemax; // maximum page offset , equal to total number of pages
	public $prev='Prev';
	public $next='Next';
	public $first='First';
	public $last='Last';
	
	function __construct($con,$query,$thispage,$numperpage,$extraquery){
		$this->con=$con;
		$this->query=$query;
		$this->numperpage=$numperpage;
		$this->extraquery=$extraquery;
		$this->thispage=$thispage;
		
		$this->numrecords=mysql_num_rows(mysql_query($this->query));
 	    $this->lastpage=(fmod($this->numrecords,$this->numperpage)==0)?0:1;
	    $this->numpages=floor($this->numrecords/$this->numperpage)+$this->lastpage;
   	    $this->offset=($this->thispage-1)*$this->numperpage;
	}
	
	function paginate(){
	    $this->builtupquery=mysql_query("$this->query limit $this->offset,$this->numperpage",$this->con);
		return $this->builtupquery;
	}
	
	function render(){
		  if($this->pagingdistance!=0){
						   $this->pagemin=($this->thispage-$this->pagingdistance<=0)?1:$this->thispage-$this->pagingdistance;
						   $this->pagemax=($this->thispage+$this->pagingdistance>=$this->numpages)?$this->numpages:$this->thispage+$this->pagingdistance;
								   if($this->thispage<$this->pagingdistance*2){
									   $this->pagemax=($this->pagingdistance*2+1<$this->numpages)?$this->pagingdistance*2+1:$this->numpages;
								   }
						   }else{
						   $this->pagemin=1;
						   $this->pagemax=$this->numpages;   
						   }
						   
		if($this->type=="dropdown"){
			$this->render1();
		}
		if($this->type=="normal"){
			$this->render2();
		}
	}
	
	function render1(){?>
    <select name="pages" onChange="window.location='<?php echo $_SERVER['PHP_SELF']?>?<?php echo $this->extraquery?>&thispage='+this.value+''">
						   <?php
						  
						   
						   for($i=$this->pagemin;$i<=$this->pagemax;$i++){?>
						   <option value="<?php echo $i?>" <?php if($this->thispage==$i){?>selected="selected"<?php }?>>Page <?php echo $i?></option>
						   <?php }?>
						   </select>
	<?php }
	
	function render2(){?>
     <table cellpadding="0" cellspacing="0">
        <tr>
						   <?php //================================body==========================
						    for($i=$this->pagemin;$i<=$this->pagemax;$i++){?>
			                  <td style="padding-left:5px;padding-right:5px"><?php if($i!=$this->thispage){?><a href="<?php echo $_SERVER['PHP_SELF']?>?<?php echo $this->extraquery?>&thispage=<?php echo $i?>"><?php echo $i?></a>
                                                            <?php }else{?>
                                                              <b><?php echo $i?></b>
                                                            <?php }?></td>
						   <?php }
						     //=====================next========================?>
                             </tr>
						   </table>
	<?php }
	
	function previous(){?>
    <?php if($this->thispage-1!=0){?>
                                       <a href="<?php echo $_SERVER['PHP_SELF']?>?<?php echo $this->extraquery?>&thispage=<?php echo $this->thispage-1?>"><?php echo $this->prev?></a>
                                      <?php }else{?>
                                      <?php echo $this->prev?>
                                      <?php }?>
	<?php }
	
	function next(){?>
     <?php if($this->thispage!=$this->numpages){?>
                                       <a href="<?php echo $_SERVER['PHP_SELF']?>?<?php echo $this->extraquery?>&thispage=<?php echo $this->thispage+1?>"><?php echo $this->next?></a>
                                      <?php }else{?>
                                      <?php echo $this->next?>
                                      <?php }?>
          
	<?php }
	
	function last(){?>
     <?php if($this->thispage!=$this->numpages){?>
                                       <a href="<?php echo $_SERVER['PHP_SELF']?>?<?php echo $this->extraquery?>&thispage=<?php echo $this->numpages?>"><?php echo $this->last?></a>
                                      <?php }else{?>
                                      <?php echo $this->last?>
                                      <?php }?>
          
	<?php }
	
	function first(){?>
    <?php if($this->thispage-1!=0){?>
                                       <a href="<?php echo $_SERVER['PHP_SELF']?>?<?php echo $this->extraquery?>&thispage=<?php echo '1'?>"><?php echo $this->first?></a>
                                      <?php }else{?>
                                      <?php echo $this->first?>
                                      <?php }?>
	<?php }
	
	
	
	
}?>