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reader_querybook.php
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<?php
session_start();
$userid=$_SESSION['userid'];
include ('mysqli_connect.php');
$sql="select name from reader_card where reader_id={$userid}";
$res=mysqli_query($dbc,$sql);
$result=mysqli_fetch_array($res);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>我的图书馆 || 图书查询</title>
<link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<style>
#resbook{
top:50%;
}
#query{
text-align: center;
}
body{
width: 100%;
background: url("300046-106.jpg") no-repeat;
background-size:cover;
color: antiquewhite;
}
</style>
</head>
<body>
<nav class="navbar navbar-default navbar-static-top" role="navigation">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">我的图书馆</a>
</div>
<div>
<ul class="nav navbar-nav">
<li ><a href="reader_index.php">主页</a></li>
<li class="active"><a href="reader_querybook.php">图书查询</a></li>
<li><a href="reader_borrow.php">我的借阅</a></li>
<li><a href="reader_info.php">个人信息</a></li>
<li><a href="reader_repass.php">密码修改</a></li>
<li><a href="reader_guashi.php">证件挂失</a></li>
<li><a href="index.php">退出</a></li>
</ul>
</div>
</div>
</nav>
<h3 style="text-align: center"><?php echo $result['name']; ?>同学，您好</h3><br/>
<h4 style="text-align: center">图书查询：</h4>
<form action="reader_querybook.php" method="POST">
<div id="query">
<label ><input name="bookquery" type="text" placeholder="请输入图书名或图书号" class="form-control"></label>
<input type="submit" value="查询" class="btn btn-default">
</div>
</form>
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST")
{
$gjc = $_POST["bookquery"];
if($gjc=="") echo "<script>alert('查询词不能为空！')</script>";
else{
$sqla="select book_id,name,author,publish,ISBN,introduction,language,price,pubdate,book_info.class_id,class_name,pressmark,state from book_info,class_info where book_info.class_id=class_info.class_id and ( name like '%{$gjc}%' or book_id like '%{$gjc}%') ;";
$resa=mysqli_query($dbc,$sqla);
$jgs=mysqli_num_rows($resa);
if($jgs==0) echo "<script>alert('图书馆内暂无此书！')</script>";
else{
echo "<table id='resbook' class='table'>
<tr>
<th>图书号</th>
<th>图书名</th>
<th>作者</th>
<th>出版社</th>
<th>ISBN</th>
<th>简介</th>
<th>语言</th>
<th>价格</th>
<th>出版日期</th>
<th>分类</th>
<th>书架号</th>
<th>状态</th>
</tr>";
foreach ($resa as $row){
echo "<tr>";
echo "<td>{$row['book_id']}</td>";
echo "<td>{$row['name']}</td>";
echo "<td>{$row['author']}</td>";
echo "<td>{$row['publish']}</td>";
echo "<td>{$row['ISBN']}</td>";
echo "<td>{$row['introduction']}</td>";
echo "<td>{$row['language']}</td>";
echo "<td>{$row['price']}</td>";
echo "<td>{$row['pubdate']}</td>";
echo "<td>{$row['class_name']}</td>";
echo "<td>{$row['pressmark']}</td>";
if($row['state']==1) echo "<td>在馆</td>"; else if($row['state']==0) echo "<td>已借出</td>";else echo "<td>无状态信息</td>";
echo "</tr>";
};
};
echo "</table>";
}
}
?>
</body>
</html>