PHP class for page turning

PHP implements paging processing class PHP instance source code: PHP implements paging processing class & lt ;? PhpclassPage {var $ CountAll; total number of records var $ CountPage; number of records displayed per page var $ Link; full page information var $ ForPage; Previous Page var $ NextPage; next Page var $ PHP class for page turning

PHP instance source code: PHP class for page turning

Class Page {

Var $ CountAll; // total number of records
Var $ CountPage; // number of records displayed on each page
Var $ Link; // display the complete page information
Var $ ForPage; // Previous Page
Var $ NextPage; // Next page
Var $ FirstPage; // The first page
Var $ LastPage; // The Last Page
Var $ CurrPage; // page
Var $ PageNum; // total number of pages
Var $ Parameter; // Parameter
Var $ LimitNum; // not counting all records, but displaying some records. for example, a total of 100 records are displayed, but only the first 50 records are displayed.

Function Page ($ SQL, $ num = 30 ){

// Initialize and count the number of records
$ This-> CountPage = $ num;
Global $ mysql;
$ SQL = base64_decode ($ SQL );
$ Result = $ mysql-> Query ($ SQL );
If (0! = $ Mysql-> AffectedRows ()){
$ Row = $ mysql-> FetchArray ($ result );
$ This-> CountAll = $ row [0];
}
Else {
$ This-> CountAll = 0;
}
// Print "total $ this-> CountAll
";
}

Function ListPage ($ SQL, $ page = 0, $ SQL _all, $ other ){
// Query, define variables, and obtain data

Global $ mysql;
// Print "SQL
";
If (isset ($ this-> LimitNum) & $ this-> CountAll> $ this-> LimitNum ){
$ This-> CountAll = $ this-> LimitNum;
} // Update the total number of browsing records

$ SQL _src = $ SQL;
// If ($ page> 0 ){
$ SQL = base64_decode ($ SQL );
$ SQL _all = base64_decode ($ SQL _all );
$ SQL _src = $ SQL;
//}
// Echo $ SQL;
If ($ this-> CountAll % $ this-> CountPage) = 0) // count the total number of pages
$ Pagecount = (integer) ($ this-> CountAll/$ this-> CountPage );
Else
$ Pagecount = (integer) ($ this-> CountAll/$ this-> CountPage) + 1;
$ This-> ageNum = $ pagecount;
If ($ page> $ this-> ageNum) // if the page number exceeds the total number of pages, set it to the maximum page number.
$ Page = $ this-> ageNum;
If ($ page <= 0) // if the page number is smaller than or equal to zero, set the page number to 1.
$ Page = 1;

If ($ this-> CountAll = 0)
{
$ This-> CurrPage = 0;
} Else {
$ This-> CurrPage = $ page;
}
$ First_start = ($ page-1) * $ this-> CountPage;
$ SQL = $ SQL. "limit". $ first_start. ",". $ this-> CountPage;
// Print "2sql
";
$ Result = $ mysql-> Query ($ SQL );
If (0! = $ Mysql-> AffectedRows ()){
$ I = 0;
While ($ row = $ mysql-> FetchArray ($ result )){
$ Array [$ I] = $ row;
// Print "name:". $ array [$ I] [Name]."
";
$ I ++;
}
}

$ SQL = base64_encode ($ SQL _src );
$ SQL _all = base64_encode ($ SQL _all );
If ($ pagecount> 1 ){
If ($ page = 1 ){
$ Nextpage = $ page + 1;
$ Forpage = 1;
$ This-> Link ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> NextPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> LastPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
}
Else if ($ page> 1) & ($ page <$ pagecount )){
$ Forpage = $ page-1;
$ Nextpage = $ page + 1;
$ This-> Link ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> ForPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> NextPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> FirstPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> LastPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
}
Else if ($ page = $ pagecount ){
$ Forpage = $ page-1;
$ Nextpage = 1;
$ This-> Link ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> FirstPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
$ This-> ForPage ="Parameter. "& SQL _all =". $ SQL _all. "". $ other. "'" class = "button_a" style = "width: 30; height: 22";>";
}
}
Else {
$ This-> Link = '';
}

Return $ array; // $ array;

}

}
/***************
Example

Include ("class. config. php ");
Include ("class. mysql. php ");
Include ("class. page. php ");
Global $ mysql;
$ Config = new Config;
$ Mysql = new TDatabase ($ config );

$ Query_all = "select count (*) from user ";
$ Page_object = new Page ($ query_all, 20 );
// New Page ('number of statistical Records' statement, number of records per Page)
If (empty ($ query_page ))
$ Query_ SQL = "select * from user ";
// Note that the variable name must be $ query_ SQL $ query_page, because the connection parameter on the next page is query_ SQL query_page by default.

$ List = $ page_object-> ListPage ($ query_ SQL, $ query_page );
// ListPage)
$ Page_object-> Parameter = '& action = view ';
// This is another Parameter of the transmitted Url. if there is one Parameter, modify the variable Parameter and the system will automatically add it to the following
// Display Data
For ($ I = 0; $ I <$ page_object-> CountPage; $ I ++)
Print $ list [$ I] [ID]. "->". $ list [$ I] [UserName]."
";
// The returned data is a two-dimensional Hasse (association) array, one-dimensional is the ID number of the record, and two-dimensional is the Hasse (association) array. we recommend that you use the field name in the database to identify the value, for example, list [0] [UserName].

// Display Other Related Data
Echo $ page_object-> CountAll; // The total number of records.
Echo $ page_object-> CountPage; // The number of data entries displayed on each page
Echo $ page_object-> Link; // display the complete page information
Echo $ page_object-> FirstPage; // The first page
Echo $ page_object-> NextPage; // Next page
Echo $ page_object-> ForPage; // Previous Page
Echo $ page_object-> LastPage; // The last page.
Echo $ page_object-> CurrPage; // page
Echo $ page_object-> PageNum; // total number of pages
$ Mysql-> DatabaseClose ();
****************/

?>