Pagination class - tail page number navigation-PHP Tutorial-php.cn

Pagination class - tail page number navigation

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Release： 2016-07-25 09:01:02

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Pagination class - tail page number navigation

/**
* Generate the tail paging navigation of Comment
* @author Li Jun
*
*/
class cmtTail{
private $currentPage;
private $totalPage;
/**
* Generate page number navigation - total control function
* @param string $currentPage current page number
* @param string $totalPage total page number
* @throws Exception If the page number is less than 1, an exception will be thrown
* @return string
*/
function __do($currentPage, $totalPage ) {
$this->currentPage=$currentPage;
$this->totalPage=$totalPage;
if($this->totalPage<=10){//The total number of pages is less than or equal to 10 pages
if( $this->currentPage==1){//The current page is the first page
$str='previous page'.$this->currentTag();
for ($i = 2; $i < = $this->totalPage; $i++) {
$str=$str.$this->commonTag($i);
}
$str=$str.$this->next();
} elseif ($this->currentPage==$this->totalPage){//Jumped to the last page
$str=$this->up();
for ($i = 1; $i < ;= $this->totalPage-1; $i++) {
$str=$str.$this->commonTag($i);
}
$str=$str.$this->currentTag() ;
$str=$str.$this->next();
}else{
$str=$this->up();
for($i=1; $i<$this-> currentPage; $i++){
$str=$str.$this->commonTag($i);
}
$str=$str.$this->currentTag();//Generate the current page tag
for ($i = $this->currentPage+1; $i <= $this->totalPage; $i++) {
$str=$str.$this->commonTag($i);
}
$str=$str.$this->next();
}
}elseif ($this->totalPage>10){//The page number is greater than 10
if($this->currentPage==1){ //8+2
$str='previous page'.$this->currentTag();
for ($i = 2; $i <= 8; $i++) {
$str=$str. $this->commonTag($i);
}
$str=$str.'...';//Add ellipses
$str=$str.$this->commonTag($this->totalPage -1);
$str=$str.$this->commonTag($this->totalPage);
}elseif($this->currentPage==$this->totalPage) {//currently Last page
$str=$this->up();
$str=$str.$this->commonTag(1);
$str=$str.'...';//Add ellipses
for ($i = $this->totalPage-6; $i < $this->totalPage; $i++) {
$str=$str.$this->commonTag($i);
}
$str=$str.$this->currentTag();
$str=$str.$this->next();
}else {
if ($this->currentPage<6) {
$str=$this->up();
for ($i = 1; $i < $this->currentPage; $i++) {
$str=$str.$this->commonTag($ i);
}
$str=$str.$this->currentTag();
for ($i = $this->currentPage+1; $i <= 7; $i++) {
$str =$str.$this->commonTag($i);
}
$str=$str.'...';//Add ellipses
$str=$str.$this->commonTag($this ->totalPage);
$str=$str.$this->next();
}else {
if ($this->currentPage>=$this->totalPage-4) {
$str =$this->up();
$str=$str.$this->commonTag(1);
$str=$str.'...';//Add ellipses
for ($i = $this->totalPage-6; $i < $this->currentPage; $i++) {
$str=$str.$this->commonTag($i);
}
$str=$str .$this->currentTag();
for ($i = $this->currentPage+1; $i <= $this->totalPage; $i++) {
$str=$str.$this ->commonTag($i);
}
$str=$str.$this->next();
}elseif ($this->currentPage<$this->totalPage-4){// 1+5+1
$str=$this->up();
$str=$str.$this->commonTag(1);
$str=$str.'...';// Add ellipsis
$str=$str.$this->commonTag($this->currentPage-2);
$str=$str.$this->commonTag($this->currentPage-1);
$str=$str.$this->currentTag();
$str=$str.$this->commonTag($this->currentPage+1);
$str=$str.$this- >commonTag($this->currentPage+2);
$str=$str.'...';//Add ellipses
$str=$str.$this->commonTag($this-> totalPage);
$str=$str.$this->next();
}
};
}
}elseif ($this->totalPage<=0){
throw new Exception("Page impossible Less than 1");
}
return $str;
}
/**
* General tag
* @param int $param page number
* @return string
*/
function commonTag($param) {
return ''.$param.'';
}
/**
* Generate current page label
* @param int $param page number
* @return string
*/
function currentTag() {
return ''.$this->currentPage.'';
}
/**
* Generate next page label
* @param int $param Next page page number
* @return string
*/
function next() {
if ($this->currentPage==$this->totalPage) {
return '下一页';
}
return '下一页';
}
/**
* Generate previous page label
* @param int $param Previous page page number
* @return string
*/
function up() {
if ($this->currentPage==1){
return '上一页';
}else{
return '上一页';
}
}
/**
* Instantiate cmtTail,
* Function: Generate tail paging navigation of Comment
* @param string $currentPage current page number
* @param string $totalPage total number of pages
* @return string return html tag string
*/
static function GO($currentPage, $totalPage) {
$p=new cmtTail();
return $p->__do($currentPage, $totalPage);
}
}