PHP Implementation paging: text pagination and digital paging _php tutorial

PHP Implementation paging: text pagination and digital paging

Source: http://www.ido321.com/1086.html

Recently, paging was used in the project. Paging is a feature that is often used, so it is encapsulated in a functional form.

Page split/*** $pageType page Type 1 is the number of page 2 is the text paging * can be $pagetotal, $page, $total and other data as parameters, or in paging as a global variable (recommended) */function paging ($    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 consistent with Echo '
  
  

  
Home |
'; Echo '
  
  

  
Prev |
'; }//Last page if ($page = = $pageTotal) {echo '
  
  

  
Next Page |
'; Echo '
  
  

  
End |
'; } else {echo '
  
  

  
Next Page |
'; Echo '
  
  

  
End |
'; } Echo '
 
 
';    Echo '; }}

Parameter explanation:

$pageTotal is the total number of pages, $page is the current page, $total is the total amount of data obtained from the database;

For simplicity, all parameters are encapsulated

Paging parameter/*** $sql an SQL statement that can get the total number of data * $size shows the number of bars per page */function pageparam ($sql, $size) {//sets all the parameters involved in global variables//$PAG    Estart where does a page start//$total total number of records $page a page $pageTotal total pages Global $pagestart, $pagesize, $total, $page, $pageTotal;    $pagesize = $size;    Get the total number of data $total = Mysql_num_rows (Querydb ($sql));        Error handling, first determine if there is an if (Isset ($_get[' page ')) {//specific page $page = $_get[' page '];        Determines whether it is empty (0 is empty)/less than 0/is a number if (Empty ($page) | | $page < 0 | |!is_numeric ($page)) {$page = 1;  } else {$page = Intval ($page);    Rounding, preventing decimals from appearing}} else {//initialization showing page 1th $page = 1;    }//Database clear 0 if ($total = = 0) {//set to 1 $pageTotal = 1;    } else {//page total number of pages (in a rounding process) $pageTotal = Ceil ($total/$pagesize);    }//pages greater than the total number $total if ($page > $pageTotal) {$page = $pageTotal; }//When the page starts with a record $pagestart = ($page-1) *$pagesize;} 

Parameter explanation:

$pagestart is when a page starts from a record, $pagesize is the number of records displayed per page

In use, call Pageparam First, and then call paging

/***  The first  SQL statement that can fetch the total number of data * The  second  page shows the number of bars */pageparam ("Select userid from User", 2);

The location of the call is selected according to the situation, and the text is paginated as follows:

The numbers are paginated as follows:

Style adjusts itself.

Next: Google Maps API shows a small example of the map

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