我在PHP中遇到了非常普遍的问题。我有一个针对不同用户组合的网站。现在，我所说的是，如果一个用户将图像上传到目录（所有用户的一个目录）组合，如果任何人将检查他们的投资组合，那么用户的图像将出现在该用户投资组合页面上。 header.php中提供了数据库连接和会话这些是我的代码..
<?php require_once('inc/header.php');
$_SESSION['user_id'];
?>
<body>
<div class="wrapper">
<div class="sidebar" data-background-color="white" data-active-color="danger">
<!--
Tip 1: you can change the color of the sidebar's background using: data-background-color="white | black"
Tip 2: you can change the color of the active button using the data-active-color="primary | info | success | warning | danger"
-->
<div class="sidebar-wrapper">
<?php require_once('inc/text-logo.php');?>
<!-- sidebar Nav -->
<ul class="nav">
<li>
<a href="dashboard.php">
<i class="ti-panel"></i>
<p>DASHBOARD</p>
</a>
</li>
<li>
<a href="index.php">
<i class="ti-user"></i>
<p>MY PROFILE</p>
</a>
</li>
<li class="active">
<a href="portfolio.php">
<i class="fa fa-camera-retro"></i>
<p>PORFTOLIO</p>
</a>
</li>
<li>
<a href="icons.html">
<i class="fa fa-share-alt"></i>
<p>SOCIAL LINKS</p>
</a>
</li>
<li>
<a href="notifications.html">
<i class="ti-bell"></i>
<p>Notifications</p>
</a>
</li>
</ul>
</div>
</div>
<div class="main-panel">
<?php require_once('inc/topnav.php');?>
<div class="content">
<div class="container-fluid">
<div class="row">
<div class="col-lg-3 col-sm-6">
<div class="card">
<div class="content">
<div class="row">
<div class="col-xs-5">
<div class="icon-big icon-danger text-center">
<i class="fa fa-upload"></i>
</div>
</div>
<div class="col-xs-7">
<div class="numbers">
<p>UPLOAD <br> MULTIIMAGES</p>
</div>
</div>
</div>
<div class="footer">
<hr />
<div class="stats">
<?php
if(isset($_POST['upload'])){
$date = date('d-m-Y H:ia');
$images = $_FILES['images']['name'];
$images_tmp = $_FILES['images']['tmp_name'];
$uploads_dir = '../uploads';
move_uploaded_file($images_tmp, "$uploads_dir/$images");
if(empty($images)){
$error = "PLEASE SELECT AT LEAST ONE PHOTO.";
}
else{
$insert_query = "INSERT INTO `portfolio` (`id`, `date`, `images`, `user_id`) VALUES (NULL, '$date', '$images', '".$_SESSION['user_id']."')";
if(mysqli_query($con, $insert_query)){
$msg = "IMAGE UPLOADED TO YOUR PORTFOLIO";
}
else{
$error = "IMAGE UPLOADING FAILED, PLEASE CHECK";
}
}
}
?>
<form action="" method="POST" enctype="multipart/form-data">
<input type="file" name="images" class="form-control" accept="image/x-png,image/gif,image/jpeg"><hr>
<input type="submit" name="upload" value="Upload" class="btn btn-info">
</form>
</div>
</div>
</div>
</div>
</div>
<?php
if(isset($error)){
?>
<div class="col-lg-3 col-sm-6">
<div class="card">
<div class="content">
<div class="row">
<div class="col-xs-5">
<div class="icon-big icon-danger text-center">
<i class="fa fa-exclamation-triangle"></i>
</div>
</div>
<div class="col-xs-7">
<div class="numbers">
</div>
</div>
</div>
<div class="footer">
<hr />
<div class="stats">
<?php
echo "<center><span style='font-size:12px;color:darkred'><h4>$error</h4></span></center>";
?>
</div>
</div>
</div> <!-- end content -->
</div> <!--end card-->
</div> <!--- end Col -->
<?php
}
else if(isset($msg)){
?>
<div class="col-lg-3 col-sm-6">
<div class="card">
<div class="content">
<div class="row">
<div class="col-xs-5">
<div class="icon-big icon-danger text-center">
<i class="fa fa-check"></i>
</div>
</div>
<div class="col-xs-7">
<div class="numbers">
</div>
</div>
</div>
<div class="footer">
<hr />
<div class="stats">
<?php
echo "<center><span style='font-size:12px;color:darkgreen'><h4>$msg</h4></span></center>";
?>
</div>
</div>
</div> <!-- end content -->
</div> <!--end card-->
</div> <!--- end Col -->
<?php } ?>
</div> <!-- end row here -->
</div>
<div class="row">
<?php
$query = "SELECT * FROM portfolio WHERE '".$_SESSION['user_id']."' = user_id ORDER BY id DESC";
$run = mysqli_query($con, $query);
if(mysqli_num_rows($run) > 0){
}
else{
echo "<center><span class='text-danger'><h3>You Didn't Upload any Portfolio Image Now!</h3></span></center>";
?>
<?php
while($row = mysqli_fetch_array($run)){
$id = $row['id'];
$images = $row['images']['name'];
$images_tmp = $row['images']['tmp_name'];
$user_id = $row['user_id'];
?>
<div class="col-sm-3">
<img src="../uploads/<?php echo $images;?>" width="200px" alt="<?php echo $user_fullname;?>" class="img-thumbnail">
</div>
<?php } }?>
</div>
</div>
</div>
<?php require_once('inc/footer.php');?>
答案 0 :(得分：0)
有几个选项
1）将用户图像的名称保存在数据库中，并在显示组合时获取并显示它们。 （我推荐）
2）为每个用户或投资组合创建一个文件夹
3）保存可接受时，在图像名称上标记user12__filename.jpg。并通过glob('/images/user'.$id.'__*')功能