PHP simple paging principle and paging code examples

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Release: 2016-07-25 08:52:49
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  1. /*******Page Principle*************/

  2. //Display the number of records per page
  3. $page_size = 3;
  4. $sql = "select * from message";
  5. $result = mysql_query($sql);

  6. //Total number of records

  7. $num = mysql_num_rows($result);
  8. //Calculation of total number of pages
  9. if($num<= $page_size) { $page_count =1; }
  10. if($num%$page_size) { $page_count = intval($num/$page_size)+1;}
  11. if($num%$page_size==0) { $page_count = $num/$page_size ;}
  12. if( isset($_GET['page']) ){
  13. $page = intval($_GET['page']);
  14. }
  15. else{
  16. $page = 1;
  17. }
  18. $sql_page= "select * from message limit ".($page-1)*$page_size.",$page_size";
  19. $do = mysql_query($sql_page);
  20. while( $re = mysql_fetch_object($ do)){
  21. echo 'Write anything you want';
  22. }
  23. if($page<>1){
  24. echo 'Homepage';
  25. echo 'Previous page';
  26. }
  27. if($page<>$page_count){
  28. echo '
    ';
  29. echo 'Next page';
  30. echo 'Last Night';
  31. echo '< /div>';
  32. }

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