One instance php mysql template paging class

<? Php Tutorial
/*
* The template paging class is derived from the paging method of the database tutorial in the easp tutorial. It is an independent php version of the easp paging.
* Supports dynamic and static paging.
** Page ([total number of records = 1], [page size = 20], [current page = 1], [display page size = 6], [paging parameter = 'page'], [paging link = current page], [static = false])
* Dynamic:
* Simple usage:
* $ Page = new page (50 );
* $ Page-> setpager ('zjj ',' <div class = "newpager"> Total {recordcount} items & nbsp; current & nbsp; {pageindex} & nbsp; page & nbsp;/& nbsp; total & nbsp; {pagecount} & nbsp; page & nbsp;: & nbsp; {first} {prev} & nbsp; {list} & nbsp; {next} {last} & nbsp; go to & nbsp; {jump} & nbsp; page </div> ', array ("listlong" => "6", "first" => "homepage ", "last" => "last page", "prev" => "previous page", "next" => "next page", "list" => "page ", "jump" => "select "));
* Echo $ page-> getpager ('zjj ');
* Full parameter usage:
* $ Page = new page (50, 20, 'page', 'prrr. Php', false );
* $ Page-> setpager ('zjj ',' <div class = "newpager"> Total {recordcount} items & nbsp; current & nbsp; {pageindex} & nbsp; page & nbsp;/& nbsp; total & nbsp; {pagecount} & nbsp; page & nbsp;: & nbsp; {first} {prev} & nbsp; {list} & nbsp; {next} {last} & nbsp; go to & nbsp; {jump} & nbsp; page </div> ', array ("listlong" => "6", "first" => "homepage ", "last" => "last page", "prev" => "previous page", "next" => "next page", "list" => "page ", "jump" => "select "));
* Echo $ page-> getpager ('zjj ');
* Static:
* $ Page = new page(50,20,1,6, 'page', 'prrr?page=.html ', true );
* $ Page-> setpager ('zjj ',' <div class = "newpager"> Total {recordcount} items & nbsp; current & nbsp; {pageindex} & nbsp; page & nbsp;/& nbsp; total & nbsp; {pagecount} & nbsp; page & nbsp;: & nbsp; {first} {prev} & nbsp; {list} & nbsp; {next} {last} & nbsp; go to & nbsp; {jump} & nbsp; page </div> ', array ("listlong" => "6", "first" => "homepage ", "last" => "last page", "prev" => "previous page", "next" => "next page", "list" => "page ", "jump" => "select "));
* Echo $ page-> getpager ('zjj ');
*/
Class page {
Private $ page_size; // Number of Entries displayed on each page
Private $ total_size; // total number of items
Private $ current_page; // the currently selected page
Private $ sub_pages; // The number of pages displayed each time
Private $ total_pages; // total number of pages
Private $ page_tpl = array (); // pagination Template
Private $ pageparam;
Private $ pagelink;
Private $ static;
 
Function _ construct ($ total_size = 1, $ page_size = 20, $ current_page = 1, $ sub_pages = 6, $ pageparam = 'page', $ pagelink = '', $ static = false ){
$ This-> page_size = intval ($ page_size );
$ This-> total_size = intval ($ total_size );
If (! $ Current_page ){
$ This-> current_page = 1;
} Else {
$ This-> current_page = intval ($ current_page );
  }
$ This-> total_pages = ceil ($ total_size/$ page_size );
$ This-> sub_pages = intval ($ sub_pages );
$ This-> pageparam = $ pageparam;
$ This-> pagelink = (empty ($ pagelink )? $ _ Server ["php_self"]: $ pagelink );
$ This-> static = $ static;
$ This-> page_tpl ['default'] = array ('tpl' => '<div class = "pager"> {first} {prev} {liststart} {list }{ listend} {next} {last} jumps to the {jump} page </div> ', 'config' => array ());
 
 }
Public function _ set ($ param, $ value ){
$ This-> $ param = $ value;
 }
Public function _ get ($ param ){
Return $ this-> $ param;
 }
/*
_ Destruct: a destructor called when the class is not in use. This function is used to release resources.
*/
Function _ destruct (){
Unset ($ page_size); // Number of Entries displayed on each page
Unset ($ total_size); // total number of items
Unset ($ current_page); // the currently selected page
Unset ($ sub_pages); // Number of pages displayed each time
Unset ($ total_pages); // total number of pages
Unset ($ page_tpl); // page template
Unset ($ pageparam); // page parameters, default page
Unset ($ pagelink );
Unset ($ static );
 }
Private function urlparameters ($ url = array ()){
Foreach ($ url as $ key => $ val ){
If ($ key! = $ This-> pageparam)
$ Arg [] = $ key. '='. $ val;
  }
$ Arg [] = $ this-> pageparam. '= *';
If ($ this-> static)
Return str_replace ('{page}', '*', $ this-> pagelink );
Else
Return $ this-> pagelink .'? '. Implode (' & ', $ arg );
 }
Public function setpager ($ tpl_name = 'default', $ tpl = '', $ config = array ()){
If (empty ($ tpl ))
$ Tpl = $ this-> page_tpl ['default'] ['tpl'];
If (empty ($ config ))
$ Config = $ this-> page_tpl ['default'] ['config'];
$ This-> page_tpl [$ tpl_name] = array ('tpl' => $ tpl, 'config' => $ config );
 }
Public function getpager ($ tpl_name = 'default '){
$ This-> getcurrentpage ();
Return $ this-> pager ($ this-> page_tpl [$ tpl_name]);
 }
Public function getcurrentpage (){
$ This-> current_page = ($ _ get [$ this-> pageparam] <= intval ($ this-> total_pages )? ($ _ Get [$ this-> pageparam] <1? 1: $ _ get [$ this-> pageparam]): intval ($ this-> total_pages ));
 }
Public function pager ($ page_tpl = ''){
If (empty ($ page_tpl ))
$ Page_tpl = $ this-> page_tpl ['default'];
$ Cfg = array ('recordcount' => intval ($ this-> total_size), 'pageindex' => intval ($ this-> current_page ), 'pagecount' => intval ($ this-> total_pages), 'pagesize' => intval ($ this-> page_size ), 'listlong' => intval ($ this-> sub_pages), 'listsidelong '=> 2, 'list' =>' * ', 'currentclass' => 'current ', 'link' => $ this-> urlparameters ($ _ get), 'first' => '& laquo;', 'prev' => '& #8249 ;', 'next' => '& #8250;', 'last' => '& raquo;', 'more' => '... ', 'disabledclass' => 'disabled', 'jup' => 'input', 'jumpplus '=> '', 'jumpaction' => '', 'jumplong '=> 50 );
If (! Empty ($ page_tpl ['config']) {
Foreach ($ page_tpl ['config'] as $ key => $ val ){
If (array_key_exists ($ key, $ cfg ))
$ Cfg [$ key] = $ val;
   }
  }
$ Tmps tutorial tr = $ page_tpl ['tpl'];
$ Pstart = $ cfg ['pageindex']-($ cfg ['listlong']/2) + ($ cfg ['listlong'] % 2) + 1;
$ Pend = $ cfg ['pageindex'] + $ cfg ['listlong']/2;
If ($ pstart <1 ){
$ Pstart = 1;
$ Pend = $ cfg ['listlong'];
  }
If ($ pend> $ cfg ['pagecount']) {
$ Pstart = $ cfg ['pagecount']-$ cfg ['listlong'] + 1;
$ Pend = $ cfg ['pagecount'];
  }
If ($ pstart <1)
$ Pstart = 1;
For ($ I = $ pstart; $ I <= $ pend; $ I ++ ){
If ($ I = $ cfg ['pageindex'])
$ Plist. = '<span class = "'. $ cfg ['currentclass']. '"> '. str_replace ('*', $ I, $ cfg ['list']). '</span> ';
Else
$ Plist. = '<a href = "'. str_replace ('*', $ I, $ cfg ['link']). '"> '. str_replace ('*', $ I, $ cfg ['list']). '</a> ';
  }
If ($ cfg ['listsidelong ']> 0 ){
If ($ cfg ['listsidelong'] <$ pstart ){
For ($ I = 1; $ I <= $ cfg ['listsidelong ']; $ I ++ ){
$ Pliststart. = '<a href = "'. str_replace ('*', $ I, $ cfg ['link']). '"> '. str_replace ('*', $ I, $ cfg ['list']). '</a> ';
    }
$ Pliststart. = ($ cfg ['listsidelong '] + 1) = $ pstart? '': $ Cfg ['more'].'';
} Else {
If ($ cfg ['listsidelong '] >=$ pstart & $ pstart> 1 ){
For ($ I = 1; $ I <= ($ pstart-1); $ I ++ ){
$ Pliststart. = '<a href = "'. str_replace ('*', $ I, $ cfg ['link']). '"> '. str_replace ('*', $ I, $ cfg ['list']). '</a> ';
     }
    }
   }
If ($ cfg ['pagecount']-$ cfg ['listsidelong '])> $ pend ){
$ Plistend = ''. $ cfg ['more']. $ plistend;
For ($ I = ($ cfg ['pagecount']-$ cfg ['listsidelong ']) + 1); $ I <= $ cfg ['pagecount']; $ I ++ ){
$ Plistend. = '<a href = "'. str_replace ('*', $ I, $ cfg ['link']). '"> '. str_replace ('*', $ I, $ cfg ['list']). '</a> ';
    }
} Else {
If ($ cfg ['pagecount']-$ cfg ['listsidelong ']) <= $ pend & $ pend <$ cfg ['pagecount']) {
For ($ I = ($ pend + 1); $ I <= $ cfg ['pagecount']; $ I ++ ){
$ Plistend. = '<a href = "'. str_replace ('*', $ I, $ cfg ['link']). '"> '. str_replace ('*', $ I, $ cfg ['list']). '</a> ';
     }
    }
   }
  }
If ($ cfg ['pageindex']> 1 ){
$ Pfirst = '<a href = "'. str_replace ('*', '1', $ cfg ['link']). '"> '. $ cfg ['first']. '</a> ';
$ Pprev = '<a href = "'. str_replace ('*', $ cfg ['pageindex']-1, $ cfg ['link']). '"> '. $ cfg ['prev']. '</a> ';
} Else {
$ Pfirst = '<span class = "'. $ cfg ['disabledclass']. '">'. $ cfg ['first']. '</span> ';
$ Pprev = '<span class = "'. $ cfg ['disabledclass']. '">'. $ cfg ['prev']. '</span> ';
  }
If ($ cfg ['pageindex'] <$ cfg ['pagecount']) {
$ Plast = '<a href = "'. str_replace ('*', $ cfg ['pagecount'], $ cfg ['link']). '"> '. $ cfg ['last']. '</a> ';
$ Pnext = '<a href = "'. str_replace ('*', $ cfg ['pageindex'] + 1, $ cfg ['link']). '"> '. $ cfg ['Next']. '</a> ';
} Else {
$ Plast = '<span class = "'. $ cfg ['disabledclass']. '">'. $ cfg ['last']. '</span> ';
$ Pnext = '<span class = "'. $ cfg ['disabledclass']. '">'. $ cfg ['Next']. '</span> ';
  }
Switch (strtolower ($ cfg ['Jump ']) {
Case 'input ':
$ Pjumpvalue = 'This. Value ';
$ Pjump = '<input type = "text" size = "3" title = "enter the number of pages to jump to and press enter "'. ($ cfg ['jumpplus '] = '')? '':''. $ Cfg ['jumpplus ']);
$ Pjump. = 'onkeydown = "webpage effect: if (event. charcode = 13 | event. keycode = 13) {if (! Isnan ('. $ pjumpvalue .')){';
$ Pjump. = ($ cfg ['jumpaction'] = ''? (Strtolower (substr ($ cfg ['link'], 0, 11) = 'javascript :')? Str_replace ('*', $ pjumpvalue, substr ($ cfg ['link'], 12): "document. location. href = '". str_replace ('*', '+ '. $ pjumpvalue. '+ '', $ cfg ['link']). ''; '): str_replace (" * ", $ pjumpvalue, $ cfg ['jumpaction']);
$ Pjump. = '} return false;} "/> ';
Break;
Case 'select ':
$ Pjumpvalue = "this. options [this. selectedindex]. value ";
$ Pjump = '<select'. ($ cfg ['jumpplus '] = ''? ''. $ Cfg ['jumpplus ']. 'Onchange =" javascript:': $ cfg ['jumpplus ']);
$ Pjump. = ($ cfg ['jumpaction'] = ''? (Strtolower (substr ($ cfg ['link'], 0, 11) = 'javascript :')? Str_replace ('*', $ pjumpvalue, substr ($ cfg ['link'], 12): "document. location. href = '". str_replace ('*', '+ '. $ pjumpvalue. '+ '', $ cfg ['link']). ''; '): str_replace (" * ", $ pjumpvalue, $ cfg ['jumpaction']);
$ Pjump. = '"title =" select the number of pages to jump to "> ';
If ($ cfg ['jumplong '] = 0 ){
For ($ I = 0; $ I <= $ cfg ['pagecount']; $ I ++ ){
$ Pjump. = '<option value = "'. $ I. '"'. ($ I = $ cfg ['pageindex'])? 'Selected = "selected" ': '').'> '. $ I.' </option> ';
     }
} Else {
$ Pjumplong = intval ($ cfg ['jumplong ']/2 );
$ Pjumpstart = ($ cfg ['pageindex']-$ pjumplong) <1 )? 1: ($ cfg ['pageindex']-$ pjumplong ));
$ Pjumpstart = ($ cfg ['pagecount']-$ cfg ['pageindex']) <$ pjumplong )? ($ Pjumpstart-($ pjumplong-($ cfg ['pagecount']-$ cfg ['pageindex']) + 1): $ pjumpstart );
$ Pjumpstart = ($ pjumpstart <1 )? 1: $ pjumpstart );
$ J = 1;
For ($ I = $ pjumpstart; $ I <= $ cfg ['pageindex']; $ I ++, $ j ++ ){
$ Pjump. = '<option value = "'. $ I. '"'. ($ I = $ cfg ['pageindex'])? 'Selected = "selected" ': '').'> '. $ I.' </option> ';
     }
$ Pjumplong = $ cfg ['pagecount']-$ cfg ['pageindex'] <$ pjumplong? $ Pjumplong: $ pjumplong + ($ pjumplong-$ j) + 1;
$ Pjumpend = $ cfg ['pageindex'] + $ pjumplong> $ cfg ['pagecount']? $ Cfg ['pagecount']: $ cfg ['pageindex'] + $ pjumplong;
For ($ I = $ cfg ['pageindex'] + 1; $ I <= $ pjumpend; $ I ++ ){
$ Pjump. = '<option value = "'. $ I. '">'. $ I. '</option> ';
     }
    }
$ Pjump. = '</select> ';
Break;
  }
$ Patterns = array ('/{recordcount}/', '/{pagecount}/', '/{pageindex}/', '/{pagesize }/', '/{list}/', '/{liststart}/', '/{listend}/', '/{first}/', '/{prev }/', '/{next}/', '/{last}/', '/{jump }/');
$ Replace = array ($ cfg ['recordcount'], $ cfg ['pagecount'], $ cfg ['pageindex'], $ cfg ['pagesize'], $ plist, $ pliststart, $ plistend, $ pfirst, $ pprev, $ pnext, $ plast, $ pjump );
$ Tmpstr = chr (13). chr (10). preg_replace ($ patterns, $ replace, $ tmpstr). chr (13). chr (10 );
Unset ($ cfg );
Return $ tmpstr;
 }
}
?>