当我从数据库中获取数据时，如何使用Javascript将值传递给我的侧边栏？目前，我可以传递数据，但只能传递数据库表中的第一行。
我只想在单击按钮时查看侧边栏中的详细信息，然后再执行某些操作。但不幸的是，第一张卡只有效，第二张卡无效。
以下代码可在以下位置获得：https://github.com/Ailyn09/AJAX-Fetch/blob/master/sidebar_details.php
数据库位于此处：https://github.com/Ailyn09/AJAX-Fetch/blob/master/sidebar_query.sql
索引.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title></title>
<!-- Bootstrap core CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
<!--Font-awesome 4.7.0-->
<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<!--Flickity-->
<link rel="stylesheet" href="https://unpkg.com/flickity@2/dist/flickity.min.css">
<script src="https://unpkg.com/flickity@2/dist/flickity.pkgd.min.js"></script>
<!--Fontello-->
<link href="web/css/fontello.css" rel="stylesheet">
</head>
<body id="body">
<nav class="navbar navbar-toggleable-md navbar-light fixed-top bg-faded">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Test</a>
<div class="collapse navbar-collapse" id="navbarCollapse">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="javascript:void(0);" onclick="window.location.href = 'index.html'">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="javascript:void(0);" onclick="window.location.href = 'category.php'">Products</a>
</li>
<li class="nav-item">
<a class="nav-link" href="javascript:void(0);" onclick="window.location.href = 'businesstype.html'">Business Types</a>
</li>
<li class="nav-item">
<a class="nav-link" href="javascript:void(0);" onclick="window.location.href = 'instructions.html'">How To Order</a>
</li>
<li class="nav-item">
<a class="nav-link" href="javascript:void(0);" onclick="window.location.href = 'contacts.html'">Contact Us</a>
</li>
</ul>
</div>
<ul class="navbar-side" id="navbarSide" style="padding: 20px;">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12" align="right">
<a class="hamburger is-closed" data-toggle="offcanvas"><i class="icon_set_1_icon-77"></i></a>
</div>
<div class="col-lg-12 col-md-12 col-sm-12" id="item_desc">
<form>
<img id="images1" src="" class="thumbnail" width="100%" height="100%">
<h3>This is item 1</h3>
<input type='text' id='field1'/>
<input type='text' id='field2'/>
<div id="field3"></div>
<p>
<a href="#" class="btn btn-outline-danger"><i class="fa fa-heart-o"></i></a>
<a href="#menu-toggle" class="btn btn-outline-primary" onclick="switchVisible();" ><i class="icon_set_1_icon-93"></i></a>
<a href="#menu-toggle" class="btn btn-outline-primary" id="menu-toggle">Book Now</a>
</p>
</form>
</div>
<div class="col-lg-12 col-md-12 col-sm-12" id="item_review">
<form>
<img src="images/web/empty_img.gif" class="thumbnail" width="100%" height="100%">
<h3>This is item 1</h3>
<div class="form-group">
<label for="exampleInputPassword1">Password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
</div>
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail1" aria-describedby="emailHelp" placeholder="Enter email">
<small id="emailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
</div>
<div class="form-group">
<label for="exampleTextarea">Review</label>
<textarea class="form-control" id="exampleTextarea" rows="3"></textarea>
</div>
<p>
<a href="#" class="btn btn-outline-danger"><i class="fa fa-heart-o"></i></a>
<a href="#menu-toggle" class="btn btn-outline-primary" onclick="switchVisible();" ><i class="icon_set_1_icon-93"></i></a>
<a href="#menu-toggle" class="btn btn-outline-primary" id="btn_submit_review">Submit</a>
</p>
</form>
<hr>
</div>
</div>
</ul>
<div class="overlay"></div>
</nav>
<div class="container marketing">
<h1>The Main page</h1>
<div class="row">
<?php
$conn = new mysqli('localhost', 'root', '1234', 'test');
if ($conn->connect_error) {
die("Connection error: " . $conn->connect_error);
}
$result = $conn->query("SELECT * FROM items");
if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {?>
<div class="col-lg-3 col-sm-6 division-card">
<div class="card" style="position: relative;">
<img class="card-img-top" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%22318%22%20height%3D%22180%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20318%20180%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15c3874090b%20text%20%7B%20fill%3Argba(255%2C255%2C255%2C.75)%3Bfont-weight%3Anormal%3Bfont-family%3AHelvetica%2C%20monospace%3Bfont-size%3A16pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15c3874090b%22%3E%3Crect%20width%3D%22318%22%20height%3D%22180%22%20fill%3D%22%23777%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22118.01666641235352%22%20y%3D%2297.5%22%3E318x180%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E" alt="Card image cap">
<h4 class="card-title no-margin" style="position: absolute; right: 0; bottom:0; top:150px;">TEST</h4>
<div class="card-block" align="left">
<h4 class="card-title no-margin">Card title</h4>
<p class="no-margin">
<i class="fa fa-star"></i>
<i class="fa fa-star"></i>
<i class="fa fa-star"></i>
<i class="fa fa-star-o"></i>
<i class="fa fa-star-o"></i>
</p>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
<input class="form-control" type='text' id='fielda' value="<?php echo $row['name'] ; ?>"/> <br/>
<input class="form-control" type='text' id='fieldb' value="<?php echo $row['price'] ; ?>"/> <br/>
<input class="form-control" type='text' id='fieldc' value="<?php echo $row['temdesc'] ; ?>"/> <br/>
<input class="form-control" type='text' id='fieldd' value="<?php echo $row['imagename'] ; ?>"/> <br/>
<a href="#" class="btn btn-primary" onclick="copy()"><i class="fa fa-heart-o"></i></a>
<a href="#menu-toggle" class="btn btn-primary" id="menu-toggle"><i class="icon_set_1_icon-93"></i></a>
<a href="#" class="btn btn-outline-primary" id="navbarSideButton" >Go Somewhere</a>
</div>
</div>
</div>
<?php } } else { } ?>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
<script type="text/javascript" src="js/jquery-3.2.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#footer").load("footer.html");
$('[data-toggle="offcanvas"]').click(function() {
$('#wrapper').toggleClass('toggled');
});
});
$(document).ready(function() {
$('#navbarSideButton').on('click', function() {
$('#navbarSide').addClass('reveal');
$('.overlay').show();
document.body.style.overflow = 'hidden';
$('#field1').val($('#fielda').val());
$('#field2').val($('#fieldb').val());
$("#field3").html($("#fieldc").val());
var path = "images/web/";
var data = $("#fieldd").val();
var imgEl = document.getElementById("images1");
imgEl.src= path.concat(data);
});
$('.is-closed').on('click', function() {
$('#navbarSide').removeClass('reveal');
$('.overlay').hide();
document.body.style.overflow = 'scroll';
});
});
function switchVisible() {
if (document.getElementById('item_desc')) {
if (document.getElementById('item_desc').style.display == 'none') {
document.getElementById('item_desc').style.display = 'block';
document.getElementById('item_review').style.display = 'none';
} else {
document.getElementById('item_desc').style.display = 'none';
document.getElementById('item_review').style.display = 'block';
}
}
}
</script>
</body>
</html>
<style type="text/css">
.navbar-side {
height: 100%;
position: fixed;
top: 0;
right: 0;
padding: 0;
list-style: none;
border-left: 2px solid #ccc;
background-color: #f7f7f9;
overflow-y: scroll;
z-index: 1000;
-webkit-transform: translateX(100%);
-ms-transform: translateX(100%);
transform: translateX(100%);
-webkit-transition: 300ms ease;
transition: 300ms ease;
}
.navbar-side-item {
padding: 1.5rem 0;
margin: 0;
border-bottom: 2px solid #ccc;
height: 5rem;
}
.side-link {
padding-left: 2rem;
}
.reveal {
-webkit-transform: translateX(0%);
-ms-transform: translateX(0%);
transform: translateX(0%);
-webkit-transition: 300ms ease;
transition: 300ms ease;
}
.overlay {
position: fixed;
display: none;
top: 0;
left: 0;
right: 0;
bottom: 0;
cursor: pointer;
background-color: #ccc;
opacity: 0.6;
z-index: 990;
}
.is-closed{
cursor: pointer;
}
#item_review{
display: none;
}
/*-------------------------------*/
/* Media Breakpoints Area */
/*-------------------------------*/
@media (min-width: 544px) {
.navbar-side {
width: 100%;
}
.container.marketing {
margin-top: 90px;
}
}
@media (min-width: 768px) {
.navbar-side {
width: 50%;
}
.container.marketing {
margin-top: 80px;
}
}
@media (min-width: 992px) {
.navbar-side {
width: 40%;
}
.container.marketing {
margin-top: 70px;
}
}
@media (min-width: 1200px) {
.navbar-side {
width: 25%;
}
.container.marketing {
margin-top: 60px;
}
}
</style>
检查此行：
$('#navbarSideButton')
在这里你正在使用#即ID's用于唯一选择的选择器。所以它仅适用于第一个选择器，这是#选择器的默认行为。而不是使用.即class适用于多项选择的选择器。