1. First display all the data in the database on the page in pages, and add a query form above the table displaying the data. (Add conditions to achieve the target results.)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <br /> <form action="fenyechaxun.php" method="get"><!--分页查询最好使用get,不要使用post,使用post会变得很复杂。--> <p>关键字:<input type="text" name="key" /> <input type="submit" value="查询" /> </p> </form> <br /> <table width="100%" border="1" cellpadding="0" cellspacing="0"> <tr> <th>地区代号</th><!--坐标头--> <th>地区名称</th> <th>上级代号</th> </tr> <?phpinclude("DBDA.class.php");//引入封装类的页面$db = new DBDA();//造一个对象 //求数据的总条数$sall = "select count(*) from chinastates";$total = $db->StrQuery($sall);include("page.class.php");//引入分页类的页面$page = new Page($total,20);//造一个分页的对象.第一个参数是数据的总条数,第二个参数是每页显示多少条数据。$sql = "select * from chinastates ".$page->limit;//调用分页里面的limit方法。$attr = $db->Query($sql);foreach($attr as $v) { echo "<tr><td>{$v[0]}</td><td>{$v[1]}</td><td>{$v[2]}</td></tr>"; }?> </table> <?phpecho $page->fpage();//显示表格下方的数据和页面的信息。?> </body> </html>
2. Do the processing page of paging query
<?php include("DBDA.class.php"); $db = new DBDA(); //查询条件 $tj1 = " 1=1 "; if(!empty($_GET["key"]))//获取提交的关键字 { $tj1 = " areaname like '%{$_GET['key']}%'"; } $sall = "select count(*) from chinastates where {$tj1}";//把条件拼接到语句中 $total = $db->StrQuery($sall); include("page.class.php"); $page = new Page($total,20); $sql = "select * from chinastates where {$tj1} ".$page->limit;//这里也要加上搜索条件 $attr = $db->Query($sql); foreach($attr as $v) { echo "<tr><td>{$v[0]}</td><td>{$v[1]}</td><td>{$v[2]}</td></tr>"; } ?>
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