1.实现分页功能
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<body><table width="100%" border="1"> <thead> <tr> <th>代号</th> <th>名称</th> <th>价格</th> </tr> </thead> <tbody> <?php require_once "./DBDA.class.php"; //加载数据库访问类的封装文件 require_once "page.class.php"; //加载分页类的封装文件 $db = new DBDA(); $sql = "select count(*) from car"; $arr = $db->query($szts); $page = new Page($arr[0][0],5); //查看总数据，并每页显示的行数据 $sql = "select * from car".$page->limit; //拼接每页显示的数据 $arr = $db->query($sql); foreach($arr as $v){ echo "<tr> <td>{$v[0]}</td> <td>{$v[1]}</td> <td>{$v[2]}</td> </tr>"; } ?> </tbody></table><div style="margin-top:20px"> <?php echo $page->fpage(); //调用分页类的方法 ?></div></body> |
2.实现多条件查询功能
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<body><?phprequire_once "./DBDA.class.php";require_once "page.class.php";$db = new DBDA();//做一个恒成立的条件$tj = " 1=1 ";$tj2 = " 1=1 ";$name = " ";$brand = " ";//当提交的数据不为空，需要改条件if(!empty($_GET["name"])){ $name = $_GET["name"]; $tj = " name like '%{$name}%' "; //使用模糊查询查询关键信息}if(!empty($_GET["brand"])){ $brand = $_GET["brand"]; $tj2 = " brand = '{$brand}' ";}?><table width="100%" border="1"><form action="test.php" method="get"> <input type="text" name="name" placeholder="请输入名称" value="<?php echo $name ?>" style="max-width:200px; float:left"> <input type="text" name="brand" placeholder="请输入系列" value="<?php echo $brand ?>" style="max-width:200px; float:left"> <button type="submit" style="float:left; margin-left:10px">查询</button> </form> <thead> <tr> <th>代号</th> <th>名称</th> <th>系列</th> <th>时间</th> <th>价格</th> </tr> </thead> <tbody> <?php $zts = "select count(*) from car where {$tj} and {$tj2}"; //多条件查询数据总数 $ats = $db->query($arr); $page = new Page($ats[0][0],2); $sql = "select * from car where {$tj} and {$tj2} ".$page->limit; $arr = $db->query($sql); foreach($arr as $v){ //给查询的关键字加字体颜色 $n = str_replace($name,"<span style='color:red'>{$name}</span>",$v[1]); echo "<tr> <td>{$v[0]}</td> <td>{$n}</td> <td>{$v[2]}</td> <td>{$v[3]}</td> <td>{$v[7]}</td> </tr>"; } ?> </tbody></table><div><?phpecho $page->fpage();?></div></body> |
以上这篇利用PHP访问数据库_实现分页功能与多条件查询功能的示例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：http://www.cnblogs.com/jly144000/archive/2017/09/04/7476217.html
