PHP Classic Pagination Code class _php tutorial

PHP Classic Pagination Code class This is a PHP page code is a classic can automatically determine the URL parameters and then pagination of the instance code, while the last page, next page, home, last Oh, but also support the Select drop-down box jump code.

PHP Tutorial Classic Pagination Code class
This is a PHP page code is a classic can automatically determine the URL parameters and then pagination of the instance code, while customizing the page, next page, home, last Oh, but also support the Select drop-down box jump code.
*/

Class page{

var $page _name= "page";

var $next _page= ' next page ';

var $pre _page= ' previous page ';

var $first _page= ' home ';

var $last _page= ' last ';

var $pre _bar= ' << ';

var $next _bar= ' >> ';

var $format _left= ';

var $format _right= ';

var $pagebarnum = 5;

var $totalpage = 0;

var $nowindex = 1;

var $url = "";

var $offset = 0;

var $rewrite = array ();

Function page ($array)

{

if (Is_array ($array)) {

if (!array_key_exists (' Total ', $array)) $this->error (__function__, ' need a param of total ');

$total =intval ($array [' total ']);

$perpage = (array_key_exists (' Perpage ', $array))? intval ($array [' Perpage ']): 10;

$nowindex = (array_key_exists (' Nowindex ', $array))? intval ($array [' Nowindex ']): ';

$url = (array_key_exists (' url ', $array))? $array [' url ']: ';

$action = (array_key_exists (' action ', $array))? $array [' Action ']: ';
$id 0 = (array_key_exists (' id0 ', $array))? $array [' id0 ']: ';
$id 1 = (array_key_exists (' id1 ', $array))? $array [' Id1 ']: ';
$id 2 = (array_key_exists (' Id2 ', $array))? $array [' Id2 ']: ';
$id 3 = (array_key_exists (' ID3 ', $array))? $array [' ID3 ']: ';

}else{

$total = $array;

$perpage = 10;

$nowindex = ";

$url = ";

$action = ";
$id 0 = ";
$id 1 = ";
$id 2 = ";
$id 3 = ";

}

if ((!is_int ($total)) | | ($total <0)) $this->error (__function__, $total. ' is not a positive integer! ');

if ((!is_int ($perpage)) | | ($perpage <=0)) $this->error (__function__, $perpage. ' is not a positive integer! ');

if (!empty ($array [' page_name '])) $this->set (' page_name ', $array [' page_name ']);

$this->_set_nowindex ($nowindex);

$this->_set_url ($url);

$this->totalpage=ceil ($total/$perpage);

$this->offset= ($this->nowindex-1) * $perpage;

$this->action = $action;
$this->rewrite = array (' action ' = = $action, ' id0 ' = + $id 0, ' id1 ' = + $id 1, ' id2 ' = + $id 2, ' ID3 ' + $id 3);
}

function set ($var, $value)
{

if (In_array ($var, Get_object_vars ($this)))

$this $var = $value;

else {

$this->error (__function__, $var. "Does not belong to pb_page!");

}

}

function Next_page ($style = ") {
if ($this->nowindex< $this->totalpage) {
return $this->_get_link ($this->_get_url ($this->nowindex+1), $this->next_page, $style);
}
Return ". $this->next_page.";
}

function Pre_page ($style = ") {
if ($this->nowindex>1) {
return $this->_get_link ($this->_get_url ($this->nowindex-1), $this->pre_page, $style);
}
Return ". $this->pre_page.";
}

function First_page ($style = ") {
if ($this->nowindex==1) {
Return ". $this->first_page.";
}
return $this->_get_link ($this->_get_url (1), $this->first_page, $style);
}

function Last_page ($style = ") {
if ($this->nowindex== $this->totalpage| | $this->totalpage==0) {

Return ". $this->last_page.";

}

return $this->_get_link ($this->_get_url ($this->totalpage), $this->last_page, $style);

}

function Nowbar ($style = ", $nowindex _style=")

{

$plus =ceil ($this->PAGEBARNUM/2);

if ($this->pagebarnum-$plus + $this->nowindex> $this->totalpage) $plus = ($this->pagebarnum-$this totalpage+ $this->nowindex);

$begin = $this->nowindex-$plus +1;

$begin = ($begin >=1)? $begin: 1;

$return = ";

for ($i = $begin; $i < $begin + $this->pagebarnum; $i + +)

{

if ($i <= $this->totalpage) {

if ($i! = $this->nowindex)

$return. = $this->_get_text ($this->_get_link ($this->_get_url ($i), $i, $style));

Else

$return. = $this->_get_text (". $i. ');

}else{

Break

}

$return. = "n";

}

Unset ($begin);

return $return;

}

/**

* Get the code to show the Jump button

*

* @return String

*/

function Select ()

{

$return = ''; for ($i =1; $i <= $this->totalpage; $i + +) {if ($i = = $this->nowindex) {$return. = ''. $i. '; }else{$return. = ''. $i. '; }} unset ($i); $return. = '';

return $return;

}

/**

* Get the value required by limit in the MySQL tutorial statement

*

* @return String

*/

function offset ()

{

return $this->offset;

}

/**

* Control the pagination display style (you can add the corresponding style)

*

* @param int $mode

* @return String

*/

Function Show ($mode =1)

{

Switch ($mode)

{

Case ' 1 ':

$this->next_page= ' next page ';

$this->pre_page= ' previous page ';

return $this->pre_page (). $this->nowbar (). $this->next_page (). ' Section '. $this->select (). ' Page ';

Break

Case ' 2 ':

$this->next_page= ' next page ';

$this->pre_page= ' previous page ';

$this->first_page= ' home ';

$this->last_page= ' last ';

return $this->first_page (). $this->pre_page (). ' [No. $this->nowindex] '. $this->next_page (). $this->last_page (). ' Section '. $this->select (). ' Page ';

Break

Case ' 3 ':

$this->next_page= ' next page ';

$this->pre_page= ' previous page ';

$this->first_page= ' home ';

$this->last_page= ' last ';

return $this->first_page ("Page_box"). "". $this->pre_page ("Page_box"). "". $this->nowbar ("Page_box_a", "Page_box_b"). "". $this->next_page ("Page_box"). "". $this->last_page ("Page_box"). "";

Break

Case ' 4 ':

$this->next_page= ' next page ';

$this->pre_page= ' previous page ';

return $this->pre_page (). $this->nowbar (). $this->next_page ();

Break

Case ' 5 ':

return $this->pre_bar (). $this->pre_page (). $this->nowbar (). $this->next_page (). $this->next_bar ();

Break

}

}

function _set_url ($url = "")

{

if (!empty ($url)) {

$this->url= $url. (Stristr ($url, '? '))? ' & ': '? '). $this->page_name. " =";

}else{

if (Empty ($_server[' query_string ')) {

$this->url=$_server[' Request_uri ']. "?". $this->page_name. " =";

}else{

if (Stristr ($_server[' query_string '), $this->page_name. ' =')){

$this->url=str_replace ($this->page_name. ' = '. $this->nowindex, ' ', $_server[' Request_uri ']);

$last = $this->url[strlen ($this->url)-1];

if ($last = = '? ' | | $last = = ' & ') {

$this->url.= $this->page_name. " =";

}else{

$this->url.= ' & $this->page_name. " =";

}

}else{

$this->url=$_server[' Request_uri ']. ' & '. $this->page_name. ' =';

}

}

}

}

function _set_nowindex ($nowindex)

{

if (empty ($nowindex)) {

if (Isset ($_get[$this->page_name])) {

$this->nowindex=intval ($_get[$this->page_name]);

}

}else{

$this->nowindex=intval ($nowindex);

}

}

function _get_url ($pageno =1)
{
Global $_cfg;
$arr = $this->rewrite;
Print_r ($arr);
Print_r ($this->url. $pageno);
if ($_cfg[' Urlrewrite ') &&!empty ($arr [' action ']) {
return Url_rewrite ($arr [' action '], array (' id0 ' = = $arr [' id0 '], ' id1 ' + $arr [' id1 '], ' id2 ' = $arr [' Id2 '], ' ID3 ' = = $arr [' ID3 '], ' page ' = $pageno));
}else{
Return $this->url. $pageno;
}

}

function _get_text ($STR)

{

Return $this->format_left. $str. $this->format_right;

}

function _get_link ($url, $text, $style = ") {

$style = (Empty ($style))? ": ' class=" '. $style. ' ";

Return '. $text. ';

}

Function error ($function, $errormsg)

{

Die (' Error in File '. __file__ ' , Function '. $function. ' () : '. $errormsg);

}

}
?>

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