Question

我有这个代码我一直在努力，但我很难工作。我做了一个，但它只适用于PHP 5.3，我意识到我的主机只支持PHP 5.0！我是否正试图看看我是否可以正确使用它在我的服务器上工作，我只是迷路了，累了哈哈

对不起，抱歉stackoverflow对我来说是个新事物。不知道怎么想。作为一个论坛或发布问题的地方...嗯，我很抱歉用我的方法粗鲁。

我想知道你可以给我一些关于如何正确插入目录结构的指导，以及我如何编写这段代码。我不知道如何告诉PHP在哪里上传我的文件和诸如此类的东西，我得到了一位朋友的帮助，他帮助我理清了我的一些错误，但我仍然迷失在处理mkdir和链接，unlink功能。这是我怎么想提到我的指示？

我知道php 5.3使用_ DIR _和php 5.0使用dirname（_ _ FILE_ _），我已经尝试了两种，我得到了同样的错误。我的文件设置为0777用于测试目的。现在想要编写和移动我上传的文件可能会出现什么问题？

    } elseif ( (file_exists("\\uploads\\{$username}\\images\\banner\\{$filename}")) || (file_exists("\\uploads\\{$username}\\images\\banner\\thumbs\\{$filename}")) ) {

        $errors['img_fileexists'] = true;
    }

    if (! empty($errors)) { 
        unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
    }

    // Create thumbnail
    if (empty($errors)) {

        // Make directory if it doesn't exist
        if (!is_dir("\\uploads\\{$username}\\images\\banner\\thumbs\\")) {

            // Take directory and break it down into folders
            $dir = "uploads\\{$username}\\images\\banner\\thumbs";
            $folders = explode("\\", $dir);

            // Create directory, adding folders as necessary as we go (ignore mkdir() errors, we'll check existance of full dir in a sec)
            $dirTmp = '';
            foreach ($folders as $fldr) {
                if ($dirTmp != '') { $dirTmp .= "\\"; }
                $dirTmp .= $fldr;
                mkdir("\\".$dirTmp); //ignoring errors deliberately!
            }

            // Check again whether it exists
            if (!is_dir("\\uploads\\$username\\images\\banner\\thumbs\\")) {
                $errors['move_source'] = true;
                unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file
            }
        }

        if (empty($errors)) {

            // Move uploaded file to final destination
            if (! move_uploaded_file($_FILES[IMG_FIELD_NAME]['tmp_name'], "/uploads/$username/images/banner/$filename")) {
                $errors['move_source'] = true;
                unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file

            } else {

                // Create thumbnail in new dir
                if (! make_thumb("/uploads/$username/images/banner/$filename", "/uploads/$username/images/banner/thumbs/$filename")) {
                    $errors['thumb'] = true;
                    unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
                }
            }
        }
    }

    // Record in database
    if (empty($errors)) {

        // Find existing record and delete existing images
        $sql = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE (`agent_id`={$user_id}) LIMIT 1";
        $result = mysql_query($sql);
        if (!$result) {
            unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
            unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
            die("<div><b>Error: Problem occurred with Database Query!</b><br /><br /><b>File:</b> " . __FILE__ . "<br /><b>Line:</b> " . __LINE__ . "<br /><b>MySQL Error Num:</b> " . mysql_errno() . "<br /><b>MySQL Error:</b> " . mysql_error() . "</div>");
        }
        $numResults = mysql_num_rows($result);
        if ($numResults == 1) {
            $row = mysql_fetch_assoc($result);

            // Delete old files
            unlink("/uploads/$username/images/banner/" . $row['bannerORIGINAL']); //delete OLD source file
            unlink("/uploads/$username/images/banner/thumbs/" . $row['bannerTHUMB']); //delete OLD thumbnail file
        }

        // Update/create record with new images
        if ($numResults == 1) {
            $sql = "INSERT INTO `agent_settings` (`agent_id`, `bannerORIGINAL`, `bannerTHUMB`) VALUES ({$user_id}, '/uploads/$username/images/banner/$filename', '/uploads/$username/images/banner/thumbs/$filename')";
        } else {
            $sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='/uploads/$username/images/banner/$filename', `bannerTHUMB`='/uploads/$username/images/banner/thumbs/$filename' WHERE (`agent_id`={$user_id})";
        }
        $result = mysql_query($sql);
        if (!$result) {
            unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file
            unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file
            die("<div><b>Error: Problem occurred with Database Query!</b><br /><br /><b>File:</b> " . __FILE__ . "<br /><b>Line:</b> " . __LINE__ . "<br /><b>MySQL Error Num:</b> " . mysql_errno() . "<br /><b>MySQL Error:</b> " . mysql_error() . "</div>");
        }
    }

    // Print success message and how the thumbnail image created
    if (empty($errors)) {
        echo "<p>Thumbnail created Successfully!</p>\n";
        echo "<img src=\"/uploads/$username/images/banner/thumbs/$filename\" alt=\"New image thumbnail\" />\n";
        echo "<br />\n";
    }
}

我收到以下错误：

警告：move_uploaded_file（./ uploads / saiyanz2k / images / banner / azumanga-wall.jpg）[function.move-uploaded-file]：无法打开流：/ services7 / webpages / util / s /中的权限被拒绝第112行的a / saiya.site.aplus.net / helixagent.com / public / upload2.php 警告：move_uploaded_file（）[function.move-uploaded-file]：无法将'/ services / webdata / phpupload / phpVoIEQj'移动到/ services7 /中的'./uploads/saiyanz2k/images/banner/azumanga-wall.jpg'第112行的webpages / util / s / a / saiya.site.aplus.net / helixagent.com / public / upload2.php

Answer 1

一种方法是从代码中检查某个命令/功能是否可用。您可以使用function_exists函数，例如：

if (function_exists('date_default_timezone_set'))
{
  date_default_timezone_set("GMT");
}
else
{
  echo 'date_default_timezone_set is not supported....';
}

Answer 2

啊！对不起，我的意思并不是要向你们发泄我的挫败感。但是我现在已经看了好几个小时了。

就像我提到的这段代码有效，但由于我的服务器很挑剔，我无法使用我编码的5.3语法。这是我试图让它在我的服务器的5.0 php上工作。

特别是我认为mkdir（）和unlink（）函数有问题。

如果你去www.helixagent.com登录测试/测试，然后在网址中找到/upload2.php然后你会看到它向我投掷的错误。

嗯，如果我使用5.3和 DIR 它会很完美但是因为我在5.0上我尝试了不同的方法

我得到的错误是

Warning: move_uploaded_file(./uploads/saiyanz2k/images/banner/azumanga-wall.jpg) [function.move-uploaded-file]: failed to open stream: Permission denied in /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload2.php on line 112

Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/services/webdata/phpupload/phpVoIEQj' to './uploads/saiyanz2k/images/banner/azumanga-wall.jpg' in /services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload2.php on line 112

Answer 3

您似乎无权访问文件夹（或文件）

/上传/ $用户名/图像/横幅/ $文件名

这可能是因为对主机的基础限制（例如，您可能不会将父目录/ services / webdata /留下来）或只是缺少权限。

尝试（临时）将/ uploads /的权限设置为777或从控制台执行脚本以查看是否有基础限制。

Answer 4

仔细查看错误消息中的路径：

即可。 /uploads/saiyanz2k/images/banner/azumanga-wall.jpg
/services7/webpages/util/s/a/saiya.site.aplus.net/helixagent.com/public/upload2.php

目的地是相对路径，很可能是相对于upload2.php的目录。我看到的一条相对路径就是这条线：

// Take directory and break it down into folders $dir = "uploads\\{$username}\\images\\banner\\thumbs";

应该是：

// Take directory and break it down into folders $dir = "\\uploads\\{$username}\\images\\banner\\thumbs";

实际上，它应该是

$dir = "/uploads/{$username}/images/banner/thumbs";

因为PHP支持在所有平台上使用正斜杠作为目录分隔符，而反斜杠仅在MS平台上支持。

有人可以帮我修改我的代码吗？

4 个答案: