Paging Terminator

PHP code :--------------------------------------------------------------------------------
<?
/*
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Class name: Lwgpagenum
Notes: PHP + MySQL paging class
Author: long Weiguo
Network user: lwg888
Email: lwg888@163.com
Use, modify, and disseminate author information
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*/
Require_once (dirname (_ FILE _). "/Lwgdb. inc. php ");
// Lwgdb. inc. php is a database connection and SQL statement execution class.
Class Lwgpageturn {
// ---------- You can set the value variable ----------------------------------------
Var $ maxnum; // Number of Entries displayed per page
Var $ maxnum_max_size = 100; // The maximum number of entries displayed on each page. It is used to specify that $ maxnum cannot exceed $ maxnum_max_size.
Var $ SQL; // SQL statement
Var $ navchar = array ('[| <]', '[<]', '[>]', '[> |]', '[<]', '[>]');
// Display characters of the navigation bar. The value can be customized, such as an img tag.
// $ Navchar [0] indicates the first page, $ navchar [1] indicates the previous page, $ navchar [2] indicates the next page, and $ navchar [3] indicates the last page, $ navchar [4] indicates the first n pages, and $ navchar [5] indicates the last n pages.
Var $ key; // if a page contains multiple pages, it is marked as a difference.
Var $ debug = true; // whether to display debugging information

// ---------- The variable used to obtain the value ---------------------------------------
Var $ totalnum; // The total number of records
Var $ totalpage; // The total number of pages.
Var $ startnum; // The ordinal number of the first entry in the total number on this page
Var $ endnum; // The ordinal number of the last row in the total number on this page
Var $ pagenum; // The ordinal number of the total number of pages on the current page.
Var $ field; // A set of result Records
Var $ id; // The serial number of each record
Var $ linkhead; // url specified by the link and relevant parameters to be passed
Var $ err; // record the last error message

// Constructor.
// The $ maxnum parameter is used to specify how many records are displayed on each page. If $ maxnum is not specified, all records are displayed instead of pagination.
// If there are more than two pages on the same page, the $ key parameter is used as the differentiation mark. Otherwise, you do not need to specify
// Usage:
// $ Obj = new Lwgpagenum ('10 ');
// Or: $ obj = new Lwgpagenum ();