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HomeBackend DevelopmentPHP TutorialPHP+smarty paging principle and paging code sharing

$ this->config_dir="smarty/smarty/config_file.class.php";
$this->caching=false;
$this->template_dir = "smarty/templates/";
    $this->cache_dir = "smarty/smarty_cache/";
  1. $this->left_delimiter = "{";
  2. $this->right_delimiter = "}";
  3. }
  4. }
  5. ?>
  6. Copy Code
  7. 2, adodb, connect database class:
  8. class conndb
{
var $dbtype;var $host;var $user;
var $pwd;

var $dbname;

var $debug;//false does not display debugging information, otherwise , display
var $conn;
function __construct($dbtype,$host,$user,$pwd,$dbname,$debug=false)
    {
  1. $this->dbtype = $dbtype;
  2. $this-> host = $host;
  3. $this->user = $user;
  4. $this->pwd = $pwd;
  5. $this->dbname = $dbname;
  6. $this->debug = $debug;
  7. }
  8. //Implement the database connection and return the connection object (personal understanding can be said to return the adodb object)
  9. function getconnid()
  10. {
  11. include_once('adodb5/adodb.inc.php');
  12. if($this-> dbtype == "mysql" || $this->dbtype == "mssql")
  13. {
  14. if($this->dbtype == "mysql")
  15. {
  16. $this->conn = newadoconnection(" mysql");//Create adodb object and declare the database type as mysql
  17. }
  18. else
  19. {
  20. $this->conn = newadoconnection("mssql");
  21. }
  22. $this->conn->connect( $this->host,$this->user,$this->pwd,$this->dbname);
  23. }
  24. else if($this->dbtype == "access")
  25. {
  26. $this->conn = newadoconnection("access");
  27. $this->conn->connect("driver={microsoft access driver (*.mdb)};dbq=".$this-> dbname.";uid=".$this->user.";pwd=".$this->pwd.";");
  28. }
  29. $this->conn->execute("set names utf-8");
  30. if($this->dbtype == "mysql")
  31. {
  32. $this->conn->debug = $this->debug;
  33. }
  34. return $this ->conn;
  35. }
  36. function closeconnid()//Close the connection to the database
  37. {
  38. $this->conn->disconnection();
  39. }
  40. }
  41. Copy code
  42. 3, Database operation class:
  43. class admindb
{
var $sqlstr; var $conn; var $sqltype;
var $rs;

var $array;

function execsql($sqlstr,$conn)
{
$rs = $conn->execute($sqlstr);
    $sqltype = strtolower(substr(trim($sqlstr),0,6)); //strtolower() function converts the string to lowercase.
  1. if($sqltype = "select")
  2. {
  3. $array = $rs->getrows(); // Similar to the array returned by the mysql_fetch_array function
  4. if(count($array) == 0 || $rs == false)
  5. {
  6. return false;
  7. }
  8. else
  9. {
  10. return $array;
  11. }
  12. }
  13. else if($sqltype = "update"||$sqltype = "insert"||$sqltype = "delete")
  14. {
  15. if($rs)
  16. {
  17. return true;
  18. }
  19. else
  20. {
  21. return false;
  22. }
  23. }
  24. }
  25. }
  26. Copy code
  27. 4,分页类:

    1. class seppage

    2. {
    3. var $rs;
    4. var $pagesize;
    5. var $nowpage;
    6. var $array;
    7. var $conn;
    8. var $sqlstr;
    9. function showdate($sqlstr,$conn,$pagesize,$nowpage)
    10. {
    11. if(!isset($nowpage)||$nowpage=="")
    12. {
    13. $nowpage = 1 ;
    14. }
    15. else
    16. {
    17. $this->nowpage = $nowpage;
    18. }
    19. $this->pagesize = $pagesize;
    20. $this->conn = $conn;
    21. $this->sqlstr = $sqlstr;
    22. $this->rs = $this->conn->pageexecute($this->sqlstr,$this->pagesize,$this->nowpage);
    23. //pageexecute($sql, $nrows, $page, $inputarr=false) 使用资料集的页码功能,叁数 $page 是以 1 为启使值
    24. $this->array = $this->rs->getrows();
    25. if(count($this->array) == 0 || $this->rs == false)
    26. {
    27. return false;
    28. }
    29. else
    30. {
    31. return $this->array;
    32. }
    33. }
    34. function showpage($contentname,$utits,$anothersearchstr,$class)

    35. {
    36. $allrs=$this->conn->execute($this->sqlstr);

    37. $record=count($allrs->getrows());
    38. $pagecount=ceil($record/$this->pagesize);
    39. $str.="共有".$contentname." ".$record." ".$utits." 每页显示 ".$this->pagesize." ".$utits." 第 ".$this->rs->absolutepage()." 页/共 ".$pagecount." 页";
    40. $str.="    ";

    41. if(!$this->rs->atfirstpage())

    42. {
    43. $str.="首页";
    44. }
    45. else
    46. {
    47. $str.="首页";
    48. }
    49. $str.=" ";
    50. if(!$this->rs->atfirstpage())

    51. {
    52. $str.="rs->absolutepage()-1).$anothersearchstr." class=".$class.">上一页";
    53. }
    54. else
    55. {
    56. $str.="上一页";
    57. }
    58. $str.=" ";
    59. if(!$this->rs->atlastpage())

    60. {
    61. $str.="rs->absolutepage()+1).$anothersearchstr." class=".$class.">下一页";
    62. }
    63. else
    64. {
    65. $str.="下一页";
    66. }
    67. $str.=" ";
    68. if(!$this->rs->atlastpage())

    69. {
    70. $str.="尾页";
    71. }
    72. else
    73. {
    74. $str.="尾页";
    75. }
    76. if(count($this->array)==0 || $this->rs==false)
    77. {
    78. return "";
    79. }
    80. else
    81. {
    82. return $str;
    83. }
    84. }
    85. }
    复制代码

    5. Classes for article character conversion processing:

    1. class usefun

    2. {
    3. function unhtml($text)
    4. {
    5. $content=(nl2br(htmlspecialchars($text))));//htmlspecialchars() function combines some predefined The characters are converted to HTML entities, and the nl2br() function inserts an HTML newline character (
      ) before each new line (/n) in the string.
    6. $content=str_replace("[strong]","",$content);

    7. $content=str_replace("[/strong]","
    8. > ;",$content);

    9. $content=str_replace("[em]","",$content);
    10. $content=str_replace("[/em]","
    11. " ,$content);
    12. $content=str_replace("[u]","",$content);
    13. $content=str_replace("[/u]","
    14. ",$ content);
    15. $content=str_replace("[font color=#ff0000]","",$content);
    16. $content=str_replace("[font color=#00ff00] ","",$content);
    17. $content=str_replace("[font color=#0000ff]","",$content);
    18. $content=str_replace("[font face=混体_gb2312]","",$content);
    19. $content=str_replace("[font face=宋体]","",$content);
    20. $content=str_replace("[font face=official script]","",$content);
    21. $content=str_replace(" [/font]","
    22. ",$content);
    23. //$content=str_replace(chr(32)," ",$content);
    24. $content=str_replace("[font size=1 ]","",$content);
    25. $content=str_replace("[font size=2]","",$content);
    26. $content= str_replace("[font size=3]","",$content);
    27. $content=str_replace("[font size=4]","", $content);
    28. $content=str_replace("[font size=5]","",$content);
    29. $content=str_replace("[font size=6]","< ;font size=6>",$content);
    30. $content=str_replace("[fieldset][legend]","

      ",$content) ;
    31. $content=str_replace("[/legend]","
    32. ",$content);
    33. $content=str_replace("[/fieldset]","
    34. ",$content) ;
    35. return $content;
    36. }
    37. }
    Copy the code

    Put all the above four classes into one class file system.class.inc.php.

    A few more files: 1. system.inc.php:

    1. session_start();

    2. include_once("smarty_inc.php");
    3. include_once("system.class.inc.php");
    4. //Database connection class Instantiation
    5. $connobj = new conndb("mysql","localhost","root","vertrigo","db_fenye",false);
    6. $conn = $connobj->getconnid();
    7. //Database operation Class instantiation
    8. $admindb = new admindb();
    9. //Paging class instantiation
    10. $seppage=new seppage();
    11. //Use common function class instantiation
    12. $usefun=new usefun();
    13. //Call smarty template
    14. $smarty=new smartyproject();
    15. function unhtml($params)
    16. {
    17. extract($params);
    18. $text=$content;
    19. global $usefun;
    20. return $usefun->unhtml($text );
    21. }
    22. $smarty->register_function("unhtml","unhtml");

    23. ?>
    Copy code

    2、执行文件,index.php:

    1. include_once("system.inc.php");
    2. $arraybbstell = $admindb->execsql("select * from tb_bookinfo",$conn);
    3. if(!$arraybbstell)
    4. {
    5. $smarty->assign("isbbstell","t");
    6. }
    7. else
    8. {
    9. $smarty->assign("isbbstell",t);
    10. $smarty->assign("arraybbstell",$arraybbstell);
    11. }
    12. $arraybbs = $seppage->showdate("select * from tb_bookinfo",$conn,1,$_get["page"]);
    13. if(!$arraybbs)
    14. {
    15. $smarty->assign("isbbs",f);
    16. }
    17. else
    18. {
    19. $smarty->assign("isbbs",t);
    20. $smarty->assign("showpage",$seppage->showpage("帖子","条","","a1"));
    21. $smarty->assign("arraybbs",$arraybbs);
    22. }
    23. $smarty->display("index.html");
    24. ?>
    复制代码

    3、解析文件,index.html:

    1. 椤垫ā
    2. PHP+smarty paging principle and paging code sharing
    3.  
      PHP+smarty paging principle and paging code sharing
    4.  
    5. {if $isbbs=="t"}
    6.   
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