PHP Page-Out class

<?php //page Category class page{    private  $total _rows; //total number of bars      private  $onepage _rows;//page Display quantity     private  $total total pages _page; //     private  $page _rows; //page Count     private  $start _id;// Description start id    private  $end _id;//description End id    private  $desc  =   ";  //description Previous, next     private  $self _page; //current page      private  $url;     public function __construct ($total, $onepage _rows=10, $page _ rows=5, $desc = ") {         $this->total_rows =  $total;          $this->onepage_rows =  $onepage _rows;          $this->page_rows =  $page _rows;          $this-> Total_page = ceil ($this->total_rows /  $this->onepage_rows);          $this->self_page = min (max ((int) @$_get[' page '],1), $this->total_page);          $this->start_id=  ($this->self_page-1) * $this onepage_rows+1;         $this->end_id= min ($this->self_page* $this->onepage_rows ,  $this->total_rows);         $ this->desc =  $this->desc ($DESC);  //prev   Next   total x Records           $this->url =  $this->requesturl ();  //url generation      }    private function requesturl () {          $url  =isset ($_server[' Request_uri ')  ? $_server[' Request_uri '] : $_server[' PHP_ Self ']. '? '. $_server[' QUERY_string '] ;         $parse _url = parse_url ($url);         if (isset ($parse _url[' query ')) {             parse_str ($parse _url[' query '], $arr);             unset ($arr [' page ']);              $url  =   $parse _url[' path '] . '? '. Http_build_query ($arr). ' &page= ';        }else{              $url  = strstr ($url, '? ')  ?   $url. ' Page= '  : $url .  '? page= ';        }             return  $url;    }     //Specifies the list page number     public function&Nbsp;pagelist () {           $start =max (1,min ($this->self_ Page-ceil ($this->page_rows/2), $this->total_page-$this->page_rows));          $end = $start  +  $this->page_rows;         $arr  = array ();         for ($i = $start;  $i <= $end;   $i + +) {            if ($i  ==  $this- >self_page) {                  $arr [$i] [' url '] =  ';                  $arr [$i] [' str '] =  $i;                 continue;             }             $arr [$i] [' url '] =  $this->url. $i;              $arr [$i] [' str '] =  $i;         }        return  $arr;     }    //string representation of the return code list     public function  Pageshow () {         $pagelist  =  $this->pagelist ();          $pagestr  =  ';         foreach ($pagelist  as  $v) {             if (Empty ($v [' url ')]) {                  $pagestr  .=  ' <strong> ' $v [' str ']. ' </strong> ';                 continue;             }             $pagestr  .=  " <a href= '. $v [' url ']. "' > ". $v [' str ']." </a> ";        }         return  $pagestr;     }    public function desc ($DESC) {          $d  = array (' prev '  =>  ' previous ', ' Next '   =>  ' next page ', ' first ' =>  ' home ', ' last '  =>  ' end ');         if (Empty ($desc)  | |  !is_array ($DESC)) { return  $d;}         function filter ($v) {             return !empty ($v);         }& NBsP;       return array_merge ($d, Array_filter ($desc, ' Filter '));     }     //Home     public function first () {        return  $this->self_page > 1 ?  ' <a href= '. $this->url. ' 1 "> $this->desc[' First ']. ' </a> ': ';     }         //last      public function last () {        return $ this->self_page <  $this->page_rows ?  ' <a href= '. $this->url. $this Page_rows. ' " > '. $this->desc[' last ']. ' </a> ': ';     }    //page     public  Function prev () {        return  $this->self_page >  1 ?  ' &Lt;a href= "'. $this->url. ($this->self_page-1). ' " > '. $this->desc[' prev '). ' </a> ': ';     }    //next     public  Function next () {        return  $this->self_page <   $this->total_page ?  ' <a href= '. $this->url. ($this->self_page+1). ' " > '. $this->desc[' next '. ' </a> ': ';     }    //return to the current section x-x     public  function nowpage () {        return  ' current section '. $this->self _page. ' Page   $this->start_id. ' --'. $this->end_id. '     }    public function limit () {         return  ' limit  '. Max (0, ($this->self_page-1) * $this->onepage_rows). ', '. $ This->onepage_rows;    }} ?>