PHP? ?? ?? ???? ?? ??? ???? ?? ??? ?? ??? ???? ?????.
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??? ??? ??? ???? ?? ?? 1, ?? 2, ...? ???? ?? ???? ???? ???
<?php $sql = "select * from new"; //獲取所有數(shù)據(jù) $result = mysqli_query($link, $sql); $arr = mysqli_fetch_array($result); //獲取所有數(shù)據(jù)并用數(shù)組形式展示 var_dump($arr); //可以通過var_dump()打印出來觀察 ?>??? ??????? ??? ?? ???? ???. while ?? ???? HTML ???? ?????
<body> <?php while($arr=mysqli_fetch_array($result)):?> <tr> <td align="center" style="border:1px solid #000;width: 8%;"><?php echo $arr['id'];?></td> <td align="center" style="border:1px solid #000; width: 10%;"><?php echo $arr['title'];?></td> <td align="center" style="border:1px solid #000; width: 10%;"><?php echo $arr['author'];?></td> <td align="center" style="border:1px solid #000; width: 15%;"><?php echo $arr['content'];?></td> <td align="center" style="border:1px solid #000; width: 10%;"><?php echo $arr['created_at'];?></td> <td align="center" style="border:1px solid #000; width: 10%;"> <a href="edit.php?id=<?php echo $arr['id']?>"><font color="red">修改</font></a> <a href="delete.php?id=<?php echo $arr['id']?>"><font color="red">刪除</font></a> </td> </tr> <?php endwhile;?> </body>
??: ?? ? ?? ??? id? ?? ?????. ???? ?? ? ?? PHP ?? ?? ??? ?? ??? ?????.
<body> <a href="edit.php?id=<?php echo $arr['id']?>"><font color="red">修改</font></a> <a href="delete.php?id=<?php echo $arr['id']?>"><font color="red">刪除</font></a> </body>
$keyword ??? ????, $_GET<?php
$keyword = isset($_GET['keyword'])?$_GET['keyword']:""; // 判斷獲取的$keyword
?>
? ???? ???. SQL???? ?? ??
?? LIKE(???? ??) ???? ?? ?? ??? ?????. LIKE ??? ????? ??? ??? ??? ? ????, ????? ??? "%" ?? "_" ????? ??? ???? ?? ?? ??? ?????. ??. ? ?? ?? ??? ????: like 'keyword%', like '%keyword', like'%keyword%'. <?php
$sql = "select * from new where title like '%$keyword%' or content like '%$keyword%'limit {$limitFrom}, {$limitNews}";
?>??? ?? ??? ???? ??
<body>
<a href="?page=<?php echo $prev;?>&keyword=<?php echo $keyword;?>">上一頁|</a>
<?php for($i=1; $i<=$countPage; $i++):?>
<a href="?page=<?php echo $i;?>&keyword=<?php echo $keyword;?>"><?php echo $i;?></a>
<?php endfor;?>
<a href="?page=<?php echo $next;?>&keyword=<?php echo $keyword;?>">|下一頁</a>
</body>
<?php
$link = mysqli_connect('localhost','username','password','test');
mysqli_set_charset($link, "utf8");
if (!$link) {
die("連接失敗:".mysqli_connect_error());
}
$keyword = isset($_GET['keyword'])?$_GET['keyword']:"";
$page = isset($_GET['page'])?$_GET['page']:1;//獲取當前分頁數(shù)
$limitNews = 3; //每頁顯示新聞數(shù)量, 這里設置每頁顯示3條新聞
$countNews = 0; //總共有多少條新聞
$countPage = 0; //一共有多少頁數(shù)
$limitFrom = ($page - 1) * $limitNews;//從第幾條數(shù)據(jù)開始讀記錄
//每頁顯示3個
//page = l limit 0
//page = 2 limit 3
//page = 3 limit 6
$sql = "select * from new where title like '%$keyword%' or content like '%$keyword%'limit {$limitFrom}, {$limitNews}";
$sqlCount = "select count(*) from new where title like '%$keyword%' or content like '%$keyword%'";
$retQuery = mysqli_query($link, $sqlCount); //查詢數(shù)量sql語句
$retCount = mysqli_fetch_array($retQuery); //獲取數(shù)量
$count = $retCount[0]?$retCount[0]:0; //判斷獲取的新聞數(shù)量
$countNews = $count;
$countPage = $countNews%$limitNews; //求余數(shù)獲取分頁數(shù)量能否被除盡
if(($countPage) > 0) { //獲取的頁數(shù)有余
$countPage = ceil($countNews/$limitNews);
// ceil()函數(shù)向上舍入為最接近的整數(shù),除不盡則取整數(shù)+1頁, 10個新聞每個頁面顯示3個，成3個頁面，剩余1個成1個頁面
} else {
$countPage = $countNews/$limitNews;
}
$prev = ($page - 1 <= 0 )?1:$page-1;
$next = ($page + 1 > $countPage)?$countPage:$page+1;
$result = mysqli_query($link, $sql);
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf8">
<title>新聞列表頁</title>
</head>
<body>
<!--搜索框-->
<form method="get" action="list.php" style="margin:10px;">
<input type="text" name="keyword" value="<?php echo $keyword;?>"/>
<input type="submit" value="搜索"/>
</form>
<br/>
<table cellspacing="0" cellpadding="0" align="center" bgcolor="#ccc" width=1000 >
<tr>
<th>編號</th>
<th>文章標題</th>
<th>文章作者</th>
<th>文章內(nèi)容</th>
<th>發(fā)布時間</th>
<th>修改時間</th>
<th>編輯文章</th>
</tr>
<?php while($arr=mysqli_fetch_array($result)):?>
<tr>
<td align="center" style="border:1px solid #000;width: 8%;"><?php echo $arr['id'];?></td>
<td align="center" style="border:1px solid #000; width: 10%;"><?php echo $arr['title'];?></td>
<td align="center" style="border:1px solid #000; width: 10%;"><?php echo $arr['author'];?></td>
<td align="center" style="border:1px solid #000; width: 15%;"><?php echo $arr['content'];?></td>
<td align="center" style="border:1px solid #000; width: 10%;"><?php echo $arr['created_at'];?></td>
<td align="center" style="border:1px solid #000; width: 10%;">
<a href="edit.php?id=<?php echo $arr['id']?>"><font color="red">修改</font></a>
<a href="delete.php?id=<?php echo $arr['id']?>"><font color="red">刪除</font></a>
</td>
</tr>
<?php endwhile;?>
</table>
<div style="margin:20px;">
共<?php echo $countPage;?>頁 |查到<?php echo $countNews;?>條記錄
當前第<?php echo $page;?>頁|
<a href="?page=<?php echo $prev;?>&keyword=<?php echo $keyword;?>">上一頁|</a>
<?php for($i=1; $i<=$countPage; $i++):?>
<a href="?page=<?php echo $i;?>&keyword=<?php echo $keyword;?>"><?php echo $i;?></a>
<?php endfor;?>
<a href="?page=<?php echo $next;?>&keyword=<?php echo $keyword;?>">|下一頁</a>
</div>
</body>
</html>? ??????. HTML ??? ??
