PHP general paging type page.php [imitation google paging]

PHP general paging class page.php [imitation google paging]

countall = $countall;
 $this->countlist = $countlist;
 $this->style=$style;
 if ($this->countall%$this->countlist!=0){
 $this->page=sprintf("%d",$this->countall/$this->countlist)+1;
 }else{
 $this->page=$this->countall/$this->countlist;
 }

 $this->pg=$_GET["pg"];
 // Ensure pg starts from page 1 if not specified
 if (!ereg("^[1-9][0-9]*$",$this->pg) || empty($this->pg)){
 $this->pg=1;
 }
 //The page number exceeds the maximum range, take the maximum value
 if ($this->pg>$this->page){
 $this->pg=$this->page;
 }
 //Get the current URL.  Please see the function entity at the bottom for specific implementation.
 $this->url = Pager::getUrl();
 //Replace incorrectly formatted page numbers with correct page numbers
 if(isset($_GET["pg"]) && $_GET["pg"]!=$this->pg){
 $this->url=str_replace("?pg=".$_GET["pg"],"?pg=$this->pg",$this->url);
 $this->url=str_replace("&pg=".$_GET["pg"],"&pg=$this->pg",$this->url);
 }
 //Generate paging in the form of numbers such as 12345.
 if ($this->page<=10){
 for ($i=1;$ipage+1;$i++){
 $this->thestr=$this->thestr.Pager::makepg($i,$this->pg);
 }
 }else{
 if ($this->pg<=5){
 for ($i=1;$ithestr=$this->thestr.Pager::makepg($i,$this->pg);
 }
 }else{
 if (6+$this->pgpage){
 for ($i=$this->pg-4;$ipg+6;$i++){
 $this->thestr=$this->thestr.Pager::makepg($i,$this->pg);
 }
 }else{
 for ($i=$this->pg-4;$ipage+1;$i++){
 $this->thestr=$this->thestr.Pager::makepg($i,$this->pg);
 }

 }
 }
 }
 //Generate text links such as previous page and next page
 $this->backstr = Pager::gotoback($this->pg);
 $this->nextstr = Pager::gotonext($this->pg,$this->page);
 //echo (" A total of ".$this->countall." items, ".$this->countlist." items per page, a total of ".$this->page." pages ".$this->backstr.$  this->thestr.$this->nextstr);
 }
 //Auxiliary function to generate digital pagination
 function makepg($i,$pg){
 if ($i==$pg){
 return " style."'>".$i."";
 }else{
 return " url,5,$i)." class='".$this->style."'>".$i."";
 }
 }
 //Function to generate information such as previous page
 function gotoback($pg){
 if ($pg-1>0){
 return $this->gotoback=" url,3,0)." class='".$this->style."'>Homepage url,2,0)." class='".$this->style.  "'>Previous page";
 }else{
 return $this->gotoback="style."'>Home Page Previous Page ";
 }
 }
 //Function to generate next page and other information
 function gotonext($pg,$page){
 if ($pg style."'>Next page url,4,0)." class='".$this->style."'>End  Page"; 
 }else{
 return " style."'>Next page Last page";
 }
 }
 //Method to process $pg in url, used to automatically generate pg=x
 function replacepg($url,$flag,$i){
 if ($flag == 1){
 $temp_pg = $this->pg;
 return str_replace("pg=".$temp_pg,"pg=".($this->pg+1),$url);
 }else if($flag == 2) {
 $temp_pg = $this->pg;
 return str_replace("pg=".$temp_pg,"pg=".($this->pg-1),$url);
 }else if($flag == 3) {
 $temp_pg = $this->pg;
 return str_replace("pg=".$temp_pg,"pg=1",$url);
 }else if($flag == 4){
 $temp_pg = $this->pg;
 return str_replace("pg=".$temp_pg,"pg=".$this->page,$url);
 }else if($flag == 5){
 $temp_pg = $this->pg;
 return str_replace("pg=".$temp_pg,"pg=".$i,$url);
 }else{
 return $url;
 }
 }
 //Method to get the current URL
 function getUrl(){
 $url="http://".$_SERVER["HTTP_HOST"];
 if(isset($_SERVER["REQUEST_URI"])){
 $url.=$_SERVER["REQUEST_URI"];
 }else{
 $url.=$_SERVER["PHP_SELF"];
 if(!empty($_SERVER["QUERY_STRING"])){
 $url.="?".$_SERVER["QUERY_STRING"];
 }
 }
 //Add pg=x to the current URL
 if (!ereg("(pg=|PG=|pG=|Pg=)", $url)){
 if (!strpos($url,"?")){
 $url = $url."?pg=1";
 }else{
 $url = $url."&pg=1";
 }
 }
 return $url;
 }
 }
 ?>

 

?