Question

所以基本上我有一个网站，允许某些成员将图像（漫画页面）上传到他们自己的图像库（到特定的漫画）。我有一个成功的图像上传脚本，我用来为每个成员上传个人资料/头像图像，但现在我想将文件上传到更具体的地方，我有点麻烦。

这是我到目前为止所拥有的：

（这是页面顶部显示的内容）

<?php
session_start();
$toplinks = "";
if (isset($_SESSION['id'])) {
    // Put stored session variables into local php variable
    $userid = $_SESSION['id'];
    $username = $_SESSION['username'];
    $toplinks = '<a href="member_profile.php?id=' . $userid . '">' . $username . '</a> &bull; 
    <a href="member_account.php">Account</a> &bull; 
    <a href="logout.php">Log Out</a>';
} else {
    $toplinks = '<a href="join_form.php">Register</a> &bull; <a href="login.php">Login</a>';
}
?>

（这是上传脚本）

<?php
// Here we run a login check
if (!isset($_SESSION['id'])) { 
   echo 'Please <a href="login.php">log in</a> to access your account';
  exit(); 
} 
// Place Session variable 'id' into local variable
$id = $_SESSION['id'];
// Process the form if it is submitted
if ($_FILES['uploadedfile']['tmp_name'] != "") {
    // Run error handling on the file
    // Set Max file size limit to somewhere around 120kb
    $maxfilesize = 400000;
    // Check file size, if too large exit and tell them why
    if($_FILES['uploadedfile']['size'] > $maxfilesize ) { 
        echo "<br /><br />Your image was too large. Must be 400kb or less, please<br /><br />
        <a href=\"upload_comic.php\">click here</a> to try again";
        unlink($_FILES['uploadedfile']['tmp_name']); 
        exit();
    // Check file extension to see if it is .jpg or .gif, if not exit and tell them why
    } else if (!preg_match("/\.(gif|jpg|png)$/i", $_FILES['uploadedfile']['name'] ) ) {
        echo "<br /><br />Your image was not .gif, .jpg, or .png and it must be one of those three formats.<br />
        <a href=\"upload_comic.php\">click here</a> to try again";
        unlink($_FILES['uploadedfile']['tmp_name']);
        exit();
        // If no errors on the file process it and upload to server 
    } else { 
        // Rename the pic
        $newname = ""; //numbers only, so they show up sequentially
        // Set the direntory for where to upload it, use the member id to hit their folder 
        // Upload the file
        if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'], "comics/$comicid/".$newname)) {
            echo "Success, the image has been uploaded and will display to visitors!<br /><br />
            <a href=\"member_account.php\">Click here</a> to return to your profile edit area";
            exit();
        } else {
            echo "There was an error uploading the file, please try again. If it continually fails, contact us by email. <br /><br />
            <a href=\"member_account.php\">Click here</a> to return to your profile edit area";
            exit();
        }
    } // close else after file error checks
} // close if post the form
?>

理想情况下，我希望能够上传如下图像：漫画/ comic_id / chapter_id / uploaded_file.extension

使用用户个人资料图片上传器，我能够从$ _Session ['id']变量中获取$ ID，但是对于漫画，我真的不知道如何获取该信息并使用它来设置comic_id目录（chapter_id将在表单上选中，所以我不太担心那个）。

有什么想法吗？

Answer 1

$ _SESSION变量在您使用session_start（）启动的任何站点都可用。因此，如果在登录后立即设置了id，则可以使用$ _SESSION ['id']以相同的方式在任何其他页面上访问此值。确保id的值不会破坏您的文件系统或导致安全问题！

Answer 2

您可以将文件上传到您选择的任何位置。这会将漫画保存在其id和章节的文件夹中，但保留文件名。如果你想使用漫画ID作为文件名，我相信你可以解决这个问题。

$basepath = "/home/path/to/www/comics/member_" . $member_id . "/";

function construct_path($chapter_id,$comic_id) 
{
   $saveimagepath = $basepath . $comic_id . $chapter
}

if (!isset($_SESSION['id'])) { 
   echo 'Please <a href="login.php">log in</a> to access your account';
  exit(); 
} 
// Place Session variable 'id' into local variable
$id = $_SESSION['id'];
// Process the form if it is submitted
if ($_FILES['uploadedfile']['tmp_name'] != "") {
    // Run error handling on the file
    // Set Max file size limit to somewhere around 120kb
    $maxfilesize = 400000;
    // Check file size, if too large exit and tell them why
    if($_FILES['uploadedfile']['size'] > $maxfilesize ) { 
        echo "<br /><br />Your image was too large. Must be 400kb or less, please<br /><br />
        <a href=\"upload_comic.php\">click here</a> to try again";
        unlink($_FILES['uploadedfile']['tmp_name']); 
        exit();
    // Check file extension to see if it is .jpg or .gif, if not exit and tell them why
    } else if (!preg_match("/\.(gif|jpg|png)$/i", $_FILES['uploadedfile']['name'] ) ) {
        echo "<br /><br />Your image was not .gif, .jpg, or .png and it must be one of those three formats.<br />
        <a href=\"upload_comic.php\">click here</a> to try again";
        unlink($_FILES['uploadedfile']['tmp_name']);
        exit();
        // If no errors on the file process it and upload to server 
    } else { 
        // Rename the pic
        $newname = $saveimagepath . $_FILES['uploadedfile']['tmp_name']; 
//numbers only, so they show up sequentially
        // Set the direntory for where to upload it, use the member id to hit their folder 
        // Upload the file
        if (move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $newname)) {
            echo "Success, the image has been uploaded and will display to visitors!<br /><br />
            <a href=\"member_account.php\">Click here</a> to return to your profile edit area";
            exit();
        } else {
            echo "There was an error uploading the file, please try again. If it continually fails, contact us by email. <br /><br />
            <a href=\"member_account.php\">Click here</a> to return to your profile edit area";
            exit();
        }
    } // close else after file error checks
} // close if post the form
?>

用户将图像上传到特定目录

2 个答案: