A php paging code (compatible with url routing)

A php paging code (compatible with url routing)

Class Page { Private $ total; // The total number of records in the data table Private $ listRows; // Number of Entries displayed on each page Private $ limit; // use the limit clause in SQL statements to limit the number of records to be retrieved Private $ uri; // automatically obtain the url request address Private $ pageNum; // The total number of pages. Private $ page; // current page Private $ config = array ( 'Head' => 'records ', 'Prev' => 'previous page ', 'Next' => 'next page ', 'First' => 'homepage ', 'Last' => 'Last page' ); // Display the content in the page information. you can set it by using the set () method. Private $ listNum = 5; // Default number of display pages /** * Constructor: you can set the attributes of the paging class. * @ Param int $ total calculate the total number of records on the page * @ Param int $ listRows (optional) sets the number of records displayed on each page. the default value is 25. * @ Param mixed $ query (optional) it is an array or string format that passes parameters to the target page. * @ Param bool $ ord: The default value is true. the page is displayed from the first page, and false is displayed from the last page. */Bbs.it-home.org Public function _ construct ($ total, $ listRows = 25, $ query = '', $ ord = true ){ $ This-> total = $ total; $ This-> listRows = $ listRows; $ This-> uri = $ this-> getUri ($ query ); $ This-> pageNum = ceil ($ this-> total/$ this-> listRows ); /* The following judgment is used to set the current page */ If (! Empty ($ _ GET ['Page']) { $ Page = $ _ GET ['Page']; } Else { If ($ ord ){ $ Page = 1; } Else { $ Page = $ this-> pageNum; } } If ($ total> 0 ){ If (preg_match ('/\ D/', $ page )){ $ This-> page = 1; } Else { $ This-> page = $ page; } } // $ This-> limit = 'limit'. $ this-> setLimit (); $ This-> limit = $ this-> setLimit (); } /** * Sets the display page information for consistent operations. * @ Param string $ the following table lists the attributes of the param member array config. * @ Param string $ value is used to set the element value corresponding to the config subscript. * @ Return object returns the current object $ this for consistent operations. */ Function _ set ($ param, $ value ){ If (array_key_exists ($ param, $ this-> config )){ $ This-> config [$ param] = $ value; } // Return $ this; } /* You can directly obtain the limit and page values of private member attributes outside the object */ Function _ get ($ args ){ If ($ args = 'limit' | $ args = 'page '){ Return $ this-> $ args; } Else { Return null; } } /** * Output pagination in the specified format * @ Param int 0-7 numbers are used as parameters to customize the output pagination structure and adjust the structure order. by default, all structures are output. * @ Return string paging information content */ Function fpage (){ $ Arr = func_get_args (); $ Html [0] = "total{$ This-> total}{$ This-> config ['head']} "; $ Html [1] = "this page". $ This-> disnum ().""; $ Html [2] = "this page is from{$ This-> start ()}-{$ this-> end ()}"; $ Html [3] ="{$ This-> page}/{$ this-> pageNum}Page "; $ Html [4] = $ this-> firstprev (); $ Html [5] = $ this-> pageList (); $ Html [6] = $ this-> nextlast (); $ Html [7] = $ this-> goPage (); $ Fpage =' '; If (count ($ arr) <1 ){ $ Arr = array (0, 1, 2, 3, 4, 5, 6, 7 ); } For ($ I = 0; $ I $ Fpage. = $ html [$ arr [$ I]; } $ Fpage. =' '; Return $ fpage; } /* Used inside the object to automatically obtain the current url for access */ Private function getUri ($ query ){ $ Request_uri = $ _ SERVER ['request _ URI ']; $ Url = strstr ($ request_uri ,'? ')? $ Request_uri: $ request_uri .'? '; If (is_array ($ query )){ $ Url. = http_build_query ($ query ); } Else if ($ query! = ''){ $ Url. = '&'. trim ($ query ,'? &'); } $ Arr = parse_url ($ url ); If (isset ($ arr ['query']) { Parse_str ($ arr ['query'], $ arrs ); Unset ($ arrs ['Page']); $ Url = $ arr ['path']. '? '. Http_build_query ($ arrs ); } If (strstr ($ url ,'? ')){ If (substr ($ url,-1 )! = '? '){ $ Url = $ url .'&'; } } Else { $ Url. = '? '; } Return $ url; } /* Private method, set limit */ Private function setLimit (){ If ($ this-> page> 0 ){ Return ($ this-> page-1) * $ this-> listRows. ", {$ this-> listRows }"; } Else { Return 0; } } /* Private method used inside the object to obtain the number of records starting from the current page */ Private function start (){ If ($ this-> total = 0 ){ Return 0; } Else { Return ($ this-> page-1) * $ this-> listRows + 1; } } /* Used to obtain the number of records at the end of the current page */ Private function end (){ Return min ($ this-> page * $ this-> listRows, $ this-> total ); } /* Used to obtain the number of records displayed on this page */ Private function disnum (){ If ($ this-> total> 0 ){ Return $ this-> end ()-$ this-> start () + 1; } Else { Return 0; } } /* Used to obtain operation information of the previous page and homepage */ Private function firstprev (){ If ($ this-> page> 1 ){ $ Str = "uri} page = 1' >{$ this-> config ['first']}"; $ Str. = "uri} page =". ($ this-> page-1). "'>{$ this-> config ['prev']}"; Return $ str; } } Private function pageList (){ $ LinkPage =''; $ PageSub = $ this-> page % $ this-> listNum; If ($ pageSub = 0 & $ this-> page> 0 ){ $ PageSub = $ this-> listNum; } /* List at the front of the current page */ For ($ I = $ pageSub-1; $ I >=1; $ I --){ $ Page = $ this-> page-$ I; If ($ page> = 1 ){ $ LinkPage. = "uri} page = {$ page} '> {$ page }"; } } /* Information on the current page */ If ($ this-> pageNum> 1 ){ $ LinkPage. = "{$ this-> page }"; } /* List after the current page */ For ($ I = 1; $ I <= $ this-> listNum-$ pageSub; $ I ++ ){ $ Page = $ this-> page + $ I; If ($ page <= $ this-> pageNum ){ $ LinkPage. = "uri} page = {$ page} '> {$ page }"; } Else { Break; } } $ LinkPage. =''; Return $ linkPage; } /* Used to obtain page number list information */ Private function pageListBak (){ $ LinkPage =''; $ Inum = floor ($ this-> listNum/2 ); /* List at the front of the current page */ For ($ I = $ inum; $ I >=1; $ I --){ $ Page = $ this-> page-$ I; If ($ page> = 1 ){ $ LinkPage. = "uri} page = {$ page} '> {$ page }"; } } /* Information on the current page */ If ($ this-> pageNum> 1 ){ $ LinkPage. = "{$ this-> page }"; } /* List after the current page */ For ($ I = 1; $ I <= $ inum; $ I ++ ){ $ Page = $ this-> page + $ I; If ($ page <= $ this-> pageNum ){ $ LinkPage. = "uri} page = {$ page} '> {$ page }"; } Else { Break; } } $ LinkPage. =''; Return $ linkPage; } /* Obtain the operation information of the next and last pages */ Private function nextlast (){ If ($ this-> page! = $ This-> pageNum ){ $ Str = "uri} page =". ($ this-> page + 1). "'>{$ this-> config ['Next']}"; $ Str. = "uri} page = {$ this-> pageNum} '> {$ this-> config ['last']}"; Return $ str; } } /* Display and process the form jump page */ Private function goPage (){ If ($ this-> pageNum> 1 ){ Return''; } } }