PHP Classic pagination Implementation Code _php tutorial

This section of the page class support display as 11/20 page Total 400 records 20/page Previous 11 12 13 14 1 This form, such as the page label, is used to control the URL page. such as xxx.php? Pb_page=2 in the Pb_page, while supporting the last page next to the end of the first page, but also automatically get URL parameter paging.

This section of the page class support display as 11/20 page Total 400 records 20/page Previous 11 12 13 14 1 This form, such as the page label, is used to control the URL page. For example xxx.php Tutorial? pb_page=2 in the Pb_page, while supporting the last page next to the end of the first page, but also automatically get URL parameter paging.

*/
Class Minupage
{
/**
* Config, public
*/
var $page _name= "P";//page tag, used to control the URL page. such as Pb_page in xxx.php?pb_page=2.
var $next _page= ' > ';//Next page
var $pre _page= ' < ';//prev
var $first _page= ' first ';//Home
var $last _page= ' last ';//End
var $pre _bar= ' << ';//previous page bar
var $next _bar= ' >> ';//Next page Bar
var $format _left= ';
var $format _right= ';
var $is whether _ajax=false;//supports Ajax paging mode

/**
* Private
*
*/
var $pagebarnum =10;//Control the number of record bars.
var $totalpage total Pages =0;//
var $ajax _action_name= ";//ajax action Name
var $nowindex =1;//Current Page
var $url = "";//url address Header
var $offset = 0;

/**
* Constructor Constructor
*
* @param array $array [' total '], $array [' Perpage '], $array [' Nowindex '], $array [' url '], $array [' Ajax '] ...
*/
function Minupage ($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 ']: ';
}else{
$total = $array;
$perpage = 10;
$nowindex = ";
$url = ";
}
if ((!is_int ($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 ']);//set PAGENAME
$this->_set_nowindex ($nowindex);//Set the current page
$this->_set_url ($url);//Set link address
$this->totalpage=ceil ($total/$perpage);
$this->offset= ($this->nowindex-1) * $perpage;
if (!empty ($array [' Ajax])) $this->open_ajax ($array [' Ajax ']);//Open Ajax mode
}
/**
* Set the value of the variable name specified in the class, if the change does not belong to this class, will throw a exception
*
* @param string $var
* @param string $value
*/
function set ($var, $value)
{
if (In_array ($var, Get_object_vars ($this)))
$this $var = $value;
else {
$this->error (__function__, $var. "Does not belong to pb_page!");
}

}
/**
* Turn on inverted Ajax mode
*
* @param string $action The default Ajax-triggered action.
*/
function Open_ajax ($action)
{
$this->is_ajax=true;
$this->ajax_action_name= $action;
}
/**
* Get the code that shows "next page"
*
* @param string $style
* @return String
*/
function Next_page ($style = ")
{
if ($this->nowindex< $this->totalpage) {
return $this->_get_link ($this->_get_url ($this->nowindex+1), $this->next_page, $style);
}
Return ''. $this->next_page. '';
}

/**
* Get the code that shows "previous page"
*
* @param string $style
* @return String
*/
function Pre_page ($style = ")
{
if ($this->nowindex>1) {
return $this->_get_link ($this->_get_url ($this->nowindex-1), $this->pre_page, $style);
}
Return ". $this->pre_page.";
}

/**
* Get the code that shows "home page"
*
* @return String
*/
function First_page ($style = ")
{
if ($this->nowindex==1) {
Return ". $this->first_page.";
}
return $this->_get_link ($this->_get_url (1), $this->first_page, $style);
}

/**
* Get the code that shows "last"
*
* @return String
*/
function Last_page ($style = ")
{
if ($this->nowindex== $this->totalpage) {
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-&GT;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 $return;
}
/**
* Get the code to show the Jump button
*
* @return String
*/
function Select ($url)
{
$return = ''; for ($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, $url = ")
{
Switch ($mode)
{
Case ' 1 ':
$this->next_page= ' next page ';
$this->pre_page= ' previous page ';
return $this->pre_page (). $this->nowbar (). $this->next_page (). ' Section '. $this->select ($url). ' 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 '. $this->select ($url). ' 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 (). $this->pre_page (). $this->next_page (). $this->last_page ();
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
}

}
/*----------------Private Function (proprietary method)-----------------------------------------------------------*/
/**
* Set URL header address
* @param: String $url
* @return Boolean
*/
function _set_url ($url = "")
{
if (!empty ($url)) {
Manually set
$this->url= $url. (Stristr ($url, '? '))? ' & ': '? '). $this->page_name. " =";
}else{
Automatically get
if (Empty ($_server[' query_string ')) {
When there is no query_string
$this->url=$_server[' Request_uri ']. "?". $this->page_name. " =";
}else{
//
if (Stristr ($_server[' query_string '), $this->page_name. ' =')){
Address exists page parameter
$this->url=str_replace ($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. ' =';
}//end if
}//end if
}//end if
}

/**
* Set Current page
*
*/
function _set_nowindex ($nowindex)
{
if (empty ($nowindex)) {
System acquisition

if (Isset ($_get[$this->page_name])) {
$this->nowindex=intval ($_get[$this->page_name]);
}
}else{
Manually set
$this->nowindex=intval ($nowindex);
}
}

/**
* Returns the address value for the specified page
*
* @param int $pageno
* @return String $url
*/
function _get_url ($pageno =1)
{
Return $this->url. $pageno;
}

/**
* Get pagination display text, e.g. _get_text (' 1 ') will return by default [1]
*
* @param string $str
* @return String $url
*/
function _get_text ($STR)
{
Return $this->format_left. $str. $this->format_right;
}

/**
* Get link address
*/
function _get_link ($url, $text, $style = ") {
$style = (Empty ($style))? ": ' class=" '. $style. ' ";
if ($this->is_ajax) {
If you are using AJAX mode
Return ' Ajax_action_name. ' ('. $url. ') ' > '. $text. ';
}else{
Return '. $text. ';
}
}
/**
* Error Handling method
*/
Function error ($function, $errormsg)
{
Die (' Error in File '. __file__ ' , Function '. $function. ' () : '. $errormsg);
}

/*
* Calculate the total number of pages in the foreground page
* Total Record Count @param
* Number of records per page @param num
*/
function Sumpage ($total, $num)
{
$nn = 0;
$nn =intval ($total/$num);
if ((int) ($total% $num)!=0)
{
$nn = $nn +1;
}
return $nn;
}

}

/*
Foreground code calls
function Minupage ($array): constructors, parameters (array (total number of pages, perpage display rows per page, nowindex current page, URL address, Ajax mode))

Use case:
$num = 20; Set the number of records to display per page
$p =isset ($_get[' P '])? Intval ($_get[' P ']): 1; Gets the passed value, which is zero when empty
$total =newssum ($sort); Total number of records obtained
$page =new minupage (Array (' total ' = $total, ' perpage ' = $num)); Calling a paging class
$p _start= ($p-1) * $NUM; Count the number of records when the page starts
$sumpage =& $page->sumpage ($total, $num); Total pages

/ Page Total records, bar/page, Show (4);? > Show as 11/20 page Total 400 records 20 record/page previous 11 12 13 14 15 Next

Paged Call method

Require_once ('.. /libs/www.bkjia.c0m/page.class.php ');
$page =new minupage (Array (' Total ' =>1000, ' perpage ' =>20));
Echo ' Mode:1
'. $page->show ();
Echo ' Mode:2
'. $page->show (2);
Echo ' Mode:3
'. $page->show (3);
Echo ' Mode:4
'. $page->show (4);
Echo ' Start Ajax mode: ';
$ajaxpage =new minupage (Array (' Total ' =>1000, ' perpage ' =>20, ' ajax ' = ' ajax_page ', ' page_name ' = ' test '));
Echo ' Mode:1
'. $ajaxpage->show ();
*/

http://www.bkjia.com/PHPjc/631722.html www.bkjia.com true http://www.bkjia.com/PHPjc/631722.html techarticle This section of the page class support display as 11/20 page Total 400 records 20/page Previous 11 12 13 14 1 This form, such as the page label, is used to control the URL page. such as xxx.php? pb_page=2 in the pb_p ...

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