Omnipotent paging-PHP source code

Omnipotent paging class

Init (1000, 20); * $ page-> setNotActiveTemplate ('{a}'); * $ page-> setActiveTemplate ('{}'); * echo $ page-> show (); *** @ author wind place */class Page {/*** total number of items */private $ total; /*** page size */private $ pageSize;/***** total page size */private $ pageNum;/***** current page */private $ page; /*** address */private $ uri;/*** paging variable */private $ pageParam;/*** limit xx, XX */private $ limit; /*** display the number by page */private $ listnum = 8; /***** pagination display template * available variable parameter * {total} total number of data entries * {pagesize} number of entries per page * {start} number of entries starting on this page * {end} number of entries ending on this page * {pagenum} total number of pages * {frist} homepage * {pre} Previous Page * {next} next Page * {last} last Page * {list} number page * {goto} jump button */private $ template = 'total {total} pieces of data. {pagesize} pieces of data are displayed on each page, A total of {start}-{end} data entries on this page {pagenum} page {frist} {pre} {list} {next} {last} {goto }'; /*** selected paging link template */private $ activeTemplate = '{text}';/*** unselected paging link template */private $ notActi VeTemplate = '{text}';/*** display text setting */private $ config = array ('frist '=> 'homepage ', 'pre' => 'previous page', 'next' => 'next page', 'last' => 'Last page '); /*** initialize * @ param type $ total number of items * @ param type $ pageSize size per page * @ param type $ param url additional parameter * @ param type $ pageParam paging variable * /public function init ($ total, $ pageSize, $ param = '', $ pageParam = 'page') {$ this-> total = intval ($ total ); $ this-> pageSize = intval ($ pageSize ); $ This-> pageParam = $ pageParam; $ this-> uri = $ this-> geturi ($ param ); $ this-> pageNum = ceil ($ this-> total/$ this-> pageSize); $ this-> page = $ this-> setPage (); $ this-> limit = $ this-> setlimit ();}/*** set the paging template * @ param type $ template configuration */public function setTemplate ($ template) {$ this-> template = $ template;}/*** set the selected page template * @ param type $ activeTemplate template configuration */public function setActiveTemplate ($ activ ETemplate) {$ this-> activeTemplate = $ activeTemplate;}/*** set the unspecified page template * @ param type $ notActiveTemplate template configuration */public function setNotActiveTemplate ($ notActiveTemplate) {$ this-> notActiveTemplate = $ notActiveTemplate;}/*** return page * @ return type */public function show () {return str_ireplace (array ('{total }', '{pagesize}', '{start}', '{end}', '{pagenum}', '{frist}', '{pre }', '{next}', '{last }', '{List}', '{goto}',), array ($ this-> total, $ this-> setPageSize (), $ this-> star (), $ this-> end (), $ this-> pageNum, $ this-> frist (), $ this-> prev (), $ this-> next (), $ this-> last (), $ this-> pagelist (), $ this-> gopage (),), $ this-> template );} /*** get the start number of limit * @ return type */public function getOffset () {return ($ this-> page-1) * $ this-> pageSize ;} /*** set LIMIT * @ return type */private function setlimit () {Return "limit ". ($ this-> page-1) * $ this-> pageSize. ", {$ this-> pageSize}";}/*** get limit * @ param type $ args * @ return type */public function _ get ($ args) {if ($ args = "limit") {return $ this-> limit;} else {return null ;}} /*** initialize the current page * @ return int */private function setPage () {if (! Empty ($ _ GET [$ this-> pageParam]) {if ($ _ GET [$ this-> pageParam]> 0) {if ($ _ GET [$ this-> pageParam]> $ this-> pageNum) return $ this-> pageNum; else return $ _ GET [$ this-> pageParam] ;}} return 1 ;} /*** initialize url * @ param type $ param * @ return string */private function geturi ($ param) {$ url = $ _ SERVER ['request _ url']. (strpos ($ _ SERVER ['request _ URI '], "? ")? "":"? "). $ Param; $ parse = parse_url ($ url); if (isset ($ parse ["query"]) {parse_str ($ parse ["query"], $ params ); unset ($ params ["page"]); $ url = $ parse ["path"]. "? ". Http_build_query ($ params); return $ url;} else {return $ url;}/*** number of entries starting on this page * @ return int */private function star () {if ($ this-> total = 0) {return 0;} else {return ($ this-> page-1) * $ this-> pageSize + 1 ;}} /*** number of end entries on the current page * @ return type */private function end () {return min ($ this-> page * $ this-> pageSize, $ this-> total);}/*** set the current page size * @ return type */private function setPageSize (){ Return $ this-> end ()-$ this-> star () + 1;}/*** homepage * @ return type */private function frist () {$ html = ''; if ($ this-> page = 1) {$ html. = $ this-> replace ("{$ this-> uri} & page = 1", $ this-> config ['frist '], true );} else {$ html. = $ this-> replace ("{$ this-> uri} & page = 1", $ this-> config ['frist '], false );} return $ html;}/*** previous page * @ return type */private function prev () {$ html = ''; if ($ this-> page> 1) {$ html. = $ this-> replace ($ this-> uri. '& page = '. ($ this-> page-1), $ this-> config ['pre'], false);} else {$ html. = $ this-> replace ($ this-> uri. '& page = '. ($ this-> page-1), $ this-> config ['pre'], true);} return $ html ;} /*** paging number list * @ return type */private function pagelist () {$ linkpage = ""; $ lastlist = floor ($ this-> listnum/2 ); for ($ I = $ lastlist; $ I >=1; $ I --) {$ page = $ this-> page-$ I; I F ($ page> = 1) {$ linkpage. = $ this-> replace ("{$ this-> uri} & page = {$ page}", $ page, false) ;}else {continue ;}$ linkpage. = $ this-> replace ("{$ this-> uri} & page = {$ this-> page}", $ this-> page, true ); for ($ I = 1; $ I page + $ I; if ($ page pageNum) {$ linkpage. = $ this-> replace ("{$ this-> uri} & page = {$ page}", $ page, false);} else {break ;}} return $ linkpage;}/*** Next Page * @ return type */private function Next () {$ html = ''; if ($ this-> page <$ this-> pageNum) {$ html. = $ this-> replace ($ this-> uri. '& page = '. ($ this-> page + 1), $ this-> config ['Next'], false);} else {$ html. = $ this-> replace ($ this-> uri. '& page = '. ($ this-> page + 1), $ this-> config ['Next'], true);} return $ html ;} /*** last page * @ return type */private function last () {$ html = ''; if ($ this-> page = $ this-> pageNum) {$ html. = $ this-> replace ($ This-> uri. '& page = '. ($ this-> pageNum), $ this-> config ['last'], true);} else {$ html. = $ this-> replace ($ this-> uri. '& page = '. ($ this-> pageNum), $ this-> config ['last'], false);} return $ html ;} /*** jump button * @ return string */private function gopage () {$ html = ''; $ html. = ''; return $ html ;} /*** template replacement * @ param type $ replace content * @ param type $ result condition * @ return type */private function replace ($ url, $ Text, $ result = true) {$ template = ($ result? $ This-> activeTemplate: $ this-> notActiveTemplate); $ html = str_replace ('{url}', $ url, $ template ); $ html = str_replace ('{text}', $ text, $ html); return $ html ;}}