下面小編就為大家帶來一篇利用PHP訪問資料庫_實現分頁功能與多條件查詢功能的樣本。小編覺得挺不錯的,現在就分享給大家,也給大家做個參考。一起跟隨小編過來看看吧
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"; //載入資料庫訪問類的封裝檔案 require_once "page.class.php"; //載入分頁類的封裝檔案 $db = new DBDA(); $sql = "select count(*) from car"; $arr = $db->query($szts); $page = new Page($arr[0][0],5); //查看總資料,並每頁顯示的行資料 $sql = "select * from car".$page->limit; //拼接每頁顯示的資料 $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><p style="margin-top:20px"> <?php echo $page->fpage(); //調用分頁類的方法 ?></p></body>
2.實現多條件查詢功能
<body><?phprequire_once "./DBDA.class.php";require_once "page.class.php";$db = new DBDA();//做一個恒成立的條件$tj = " 1=1 ";$tj2 = " 1=1 ";$name = " ";$brand = " ";//當提交的資料不為空白,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資訊}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}"; //多條件查詢資料總數 $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型顏色 $n = str_replace($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><p><?phpecho $page->fpage();?></p></body>