jQuery實現簡單的圖片查看器
636
2024-03-15
1.實現分頁功能
<body>
<table width="100%" border="1">
<thead>
<tr>
<th>代號</th>
<th>名稱</th>
<th>價格</th>
</tr>
</thead>
<tbody>
<?php
require_once "./DBDA.class.php"; //加載數據庫訪問類的封裝文件
require_once "page.class.php"; //加載分頁類的封裝文件
$db = new DBDA();
$sql = "select count(*) from car";
$arr = $db->query($szts);
$page = new Page($arr[0][0],5); //查看總數據，并每頁顯示的行數據
$sql = "select * from car".$page->limit; //拼接每頁顯示的數據
$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(); //調用分頁類的方法
?>
</div>
</body>
2.實現多條件查詢功能
<body>
<?php
require_once "./DBDA.class.php";
require_once "page.class.php";
$db = new DBDA();
//做一個恒成立的條件
$tj = " 1=1 ";
$tj2 = " 1=1 ";
$name = " ";
$brand = " ";
//當提交的數據不為空，需要改條件
if(!empty($_GET["name"])){
$name = $_GET["name"];
$tj = " name like '%{$name}%' "; //使用模糊查詢查詢關鍵信息
}
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="請輸入名稱" value="<?php echo $name ?>" style="max-width:200px; float:left">
<input type="text" name="brand" placeholder="請輸入系列" value="<?php echo $brand ?>" style="max-width:200px; float:left">
<button type="submit" style="float:left; margin-left:10px">查詢</button>
</form>
<thead>
<tr>
<th>代號</th>
<th>名稱</th>
<th>系列</th>
<th>時間</th>
<th>價格</th>
</tr>
</thead>
<tbody>
<?php
$zts = "select count(*) from car where {$tj} and {$tj2}"; //多條件查詢數據總數
$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){
//給查詢的關鍵字加字體顏色
$n = str_replace($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>
<?php
echo $page->fpage();
?>
</div>
</body>
以上這篇利用PHP訪問數據庫_實現分頁功能與多條件查詢功能的示例就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持綠夏網。
