PHP functions for paging effects, PHP text paging and digital paging

Page out /** * $pageType Paging Type 1 is the number page 2 is the text paging * $pagetotal, $page, $total and other data can be passed as parameters, or in paging as global variables (recommended) */ function Paging ($pageType) { Global $pageTotal, $page, $total; if ($pageType = = 1) { Echo '; Echo ' ; for ($i =0; $i < $pageTotal; $i + +) { if ($page = = ($i + 1)) { Echo ' '. ($i + 1). ' '; } Else { Echo ' '. ($i + 1). ' '; } } Echo '; Echo '; } else if ($pageType = = 2) { Echo '; Echo ' ; Echo ' '. $page. ' /'. $pageTotal. ' Page | '; Echo ' A total of '. $total. ' A Member | '; First page if ($page = = 1) { Echo ' Home | '; Echo ' Prev | '; } Else { $_server["Script_name"] gets the current script name for easy porting You can also customize constants, constant values and script filenames are consistent Echo ' Home | '; Echo ' Prev | '; } Last page if ($page = = $pageTotal) { Echo ' Next Page | '; Echo ' End | '; } Else { Echo ' Next Page | '; Echo ' End | '; } Echo ' '; Echo '; } } Copy Code Parameter interpretation: $pageTotal is the total number of pages, $page is the current page, $total is the total amount of data obtained from the database; 2, the parameters are all encapsulated Split-page parameter loading /** * $sql An SQL statement that can get the total number of data * $size show the number of bars per page */ function Pageparam ($sql, $size) { Set the global variables for all the parameters involved $pagestart where a page starts $total total number of records $page a page $pageTotal total pages Global $pagestart, $pagesize, $total, $page, $pageTotal; $pagesize = $size; Get Total data $total = Mysql_num_rows (Querydb ($sql)); Error handling, first determine if there is if (Isset ($_get[' page ')) { A specific page $page = $_get[' page ']; Determines whether it is empty (0 is empty)/less than 0/whether it is a number if (Empty ($page) | | $page < 0 | |!is_numeric ($page)) { $page = 1; } Else { $page = Intval ($page); Rounding to prevent decimals from appearing } } Else { Initialization shows page 1th $page = 1; } Database zeroing if ($total = = 0) { Set to 1 $pageTotal = 1; } Else { The total number of pages in the page (in-one rounding) $pageTotal = Ceil ($total/$pagesize); } Pages larger than total page $total if ($page > $pageTotal) { $page = $pageTotal; } When a page starts from a record $pagestart = ($page-1) * $pagesize; } Copy Code Parameter interpretation: $pagestart is when a page starts from a record, $pagesize is the number of records displayed per page 3, in use, call Pageparam First, and then call paging /** * The first SQL statement to get the total number of data * The second each page shows the number of bars */ Pageparam ("Select userid from User", 2); Paging Type 1 is a number page 2 is a text paging Paging (2); ?> Copy Code 4, the call location according to the specific circumstances of choice, the text page: Paging Type 1 is a number page 2 is a text paging Paging (1); ?> Copy Code

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