就像一个白痴我同意为客户创建一个表单（我通常只做HTML和CSS编码），它包含PHP用于sendmail /文件上传。我认为在网上过多的教程并不太难，我想开始学习PHP。我在客户端处于领先地位，我没有使用过PHP的经验并且给了很大的折扣，因为我认为这是一个学习机会而不是合同工作。
我在开发过程中将表单作为两个独立的部分运行：
所以我为自己感到骄傲。但是，我现在正在尝试重命名上传的文件，如下所示：
ClientCompanyName_ProjectName_FileName_Increment.Extension
是的，这似乎很长，但客户想要非常简单地区分单个目录中的单个文件（我不知道如何在客户端的客户端上传新文件时创建新的唯一目录）。
正如我所说，在尝试重命名文件之前，我有file_upload.php函数。一旦我添加了代码，我想通过从FORM输入字段中提取来重命名该文件，我打破了PHP，现在已经失去了如何根据需要使其工作。
一个简单的表格如下，我对form_input.php的php在下面。
<form action="./upload.php" method="post" enctype="multipart/form-data">
<label for="company">Company Name:</label><input type="text" name="company" id="company" />
<br />
<label for="proj_name">Project Name:</label><input type="text" name="proj_name" id="proj_name" />
<br />
<label for="file">Select a File:</label><input type="file" name="userfile" id="file" />
<br />
<input type="submit" name="submit" id="submit" value="Upload File" />
</form>
<?php
if (isset($_POST['submit'])) {
// Configuration - Script Options
$filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension
$file_basename = substr($filename, 0, strripos($filename, '.')); // Get file name minus extension
$file_ext = substr($filename, strripos($filename, '.')); // Get file extension
$filesize = $_FILES['file']['size']; // Get file size
$allowed_file_types =
array('.jpg','.jpeg','.gif','.bmp','.png','.pdf','.doc','.docx','.psd');
// These will be the types of files that are allowed to
// pass the upload validation
$file_counter = 1; // used to increment filename if name already exists
$company = $_REQUEST['company'];
$project = $_REQUEST['proj_name'];
// File renaming and upload functionality
if (in_array($file_ext,$allowed_file_types) && ($filesize < 10000001)) {
// Checks to make sure uploaded file(s) is an allowed file
// type AND within the allowable file size (currently 10MB)
// Rename File
$newfilename = $company . '_' . $proj_name . '_' . $file_basename;
// Rename file as (CompanyName_FileName_DateStamp)
// Loop until an available file name is found
while (file_exists( "file_uploads/" . $newfilename ))
$finalfilename = $newfilename . '_' . $file_counter++ . $file_ext;
// This will be the File Name shown in the upload destination directory
// (currently the "file_uploads" directory)
if (file_exists("file_uploads/" . $finalfilename)) {
// file already exists error
echo "This file already exists. Please rename this file and upload again if necessary.";
} else {
move_uploaded_file($_FILES["file"]["tmp_name"], "file_uploads/" . $finalfilename);
echo "File uploaded successfully.";
}
} elseif (empty($file_basename)) {
// file selection error
echo "Please select a file to upload.";
} elseif ($filesize > 10000000) {
//file size error
echo "The file you are trying to upload is too large. Files must be no larger than 10MB.";
} else {
// file type error
echo "The file you attempted to upload is not allowed. You can only upload the following types of files: .jpg, .jpeg, .gif, .bmp, .png, .pdf, .doc, .docx, and .psd.";
unlink($_FILES["file"]["tmp_name"]);
}
}
?>
当我尝试上传文件时，我收到以下错误的变体：
解析错误：语法错误，第27行/home4/yourpass/public_html/upload/upload.php中的意外T_ELSE
当我修复一个错误时，在另一行上发生新的类似错误，最后我收到一条错误，指出文件已存在但服务器上的目录中没有重复文件。
对于那些想要尝试此表单的实时版本的人，您可以通过以下链接进行操作：
http://www.niagarathistle.com/upload/form_upload.html
任何帮助或推动正确的方向将不胜感激。谢谢！
PS：很抱歉代码格式化。我仍然试图弄清楚如何轻松地使用Markdown获取我的代码并正确格式化。
答案 0 :(得分：0)
您的逻辑中有错误：
// Checks to make sure uploaded file(s) is an allowed file
// type AND within the allowable file size (currently 10MB)
// Rename File
$newfilename = $company . '_' . $proj_name . '_' . $file_basename;
// $finalfilename will not be set, unless the while-loop is entered
// so we just set a default one
$finalfilename = $newfilename;
while (file_exists( "file_uploads/" . $finalfilename ))
$finalfilename = $newfilename . '_' . $file_counter++ . $file_ext;
现在可行。
答案 1 :(得分：0)
我找到了一些代码未按预期工作的地方，以及一些拼写错误。以下代码适用于我的Dreamhosted网站。
我修复的具体问题：
$_FILES['file']的引用应该是$_FILES['userfile']（这可能是您的服务器特有的，我不确定，但您最初使用$_FILES['userfile']）$newfilename需要添加$file_ext move_uploaded_file()成功$_REQUEST超全局更改为$_POST（除非必须，否则不应使用$_REQUEST）如果您想尝试一下，请参阅：
http://jfcoder.com/test/fileupload.php
如果您想查看背后的代码，请使用以下链接：
http://jfcoder.com/test/fileupload.php?show=true
另外，我可能建议使用库/框架/ CMS而不是滚动自己的代码（如果你是设计师，我会看CodeIgniter / ExpressionEngine）。< / p>
<?php
if (isset($_POST['submit'])) {
// Configuration - Script Options
$filename = $_FILES['userfile']['name']; // Get the name of the file (including file extension
$file_basename = substr($filename, 0, strripos($filename, '.')); // Get file name minus extension
$file_ext = substr($filename, strripos($filename, '.')); // Get file extension
$filesize = $_FILES['userfile']['size']; // Get file size
$allowed_file_types =
array('.jpg','.jpeg','.gif','.bmp','.png','.pdf','.doc','.docx','.psd');
// These will be the types of files that are allowed to
// pass the upload validation
$file_counter = 1; // used to increment filename if name already exists
$company = $_POST['company'];
$project = $_POST['proj_name'];
// File renaming and upload functionality
if (in_array($file_ext,$allowed_file_types) && ($filesize < 10000001)) {
// Checks to make sure uploaded file(s) is an allowed file
// type AND within the allowable file size (currently 10MB)
// Rename File
$newfilename = $company . '_' . $project . '_' . $file_basename . $file_ext;
// $finalfilename will not be set, unless the while-loop is entered
// so we just set a default one
$finalfilename = $newfilename;
while (file_exists( "file_uploads/" . $finalfilename ))
$finalfilename = $newfilename . '_' . $file_counter++ . $file_ext;
// This will be the File Name shown in the upload destination directory
// (currently the "file_uploads" directory)
if (file_exists("file_uploads/" . $finalfilename)) {
// file already exists error
echo "This file already exists. Please rename this file and upload again if necessary.";
} else {
if (move_uploaded_file($_FILES["userfile"]["tmp_name"], "file_uploads/" . $finalfilename)) {
echo "File uploaded successfully.";
echo " <a href=\"/test/file_uploads/$finalfilename\">Link</a>";
} else {
echo "File not uploaded/moved successfully. ";
}
}
} elseif (empty($file_basename)) {
// file selection error
echo "Please select a file to upload.";
} elseif ($filesize > 10000000) {
//file size error
echo "The file you are trying to upload is too large. Files must be no larger than 10MB.";
} else {
// file type error
echo "The file you attempted to upload is not allowed. You can only upload the following types of files: .jpg, .jpeg, .gif, .bmp, .png, .pdf, .doc, .docx, and .psd.";
unlink($_FILES["userfile"]["tmp_name"]);
}
}
?>