Form File Upload Script

[tom100]

I see a lot of questions about file uploads, etc, so I figured I would make a script that everyone can use. You guys can tell me if it works and if it helps at all.

 

function: uploadFiles(string $cfile)

$cfile is a key in the $_FILES array.

 

Returns:

0 if failed

Filedirectory/Filename if success

 

Error messages are stored in a global variable called

$_UPLOADERROR

 

Here is the include file:

<?php
//#########################################
//#            UPLOAD SCRIPT              #
//#---------------------------------------#
//# Step 1: Change the path constant to   #
//# the directory you want files saved.   #
//#---------------------------------------#
//# Step 2: Change the CHMOD constant to  #
//# whatever you want.                    #
//#---------------------------------------#
//# Step 3: Setup your form and call this #
//# script with the $_FILE key.           #
//#########################################

define("_UPLOADPATH", "file_uploads/");
define("_UPLOADCHMOD", "0755");
define("_UPLOADDIR", "0755");

function uploadFiles($cfile)
	{
	$_UPLOADERROR="";
	global $_UPLOADERROR;
	$errorMessages=array();
	$errorMessages[0]="Uploaded files must have an extension.";
	$errorMessages[1]="The file upload directory does not exist.";
	$errorMessages[2]="The file permissions could not be changed.";
	$errorMessages[3]="The file could not be moved to the upload directory.";
	$errorMessages[4]="The uploaded file was invalid or corrupt.";
	$errorMessages[5]="The uploaded file was invalid.";
	$errorMessages[6]="The uploaded file size is larger than the size allowed in PHP.ini.";
	$errorMessages[7]="The uploaded file size is larger than the size allowed in the html form.";
	$errorMessages[8]="The uploaded file was only partially uploaded.";
	$errorMessages[9]="No file was uploaded.";
	$errorMessages[10]="The servers temporary upload directory was not found.";
	$errorMessages[11]="File could not be written to disk.";
	$errorMessages[12]="File upload stopped by extension.";
	$errorMessages[13]="An unknown error has occured.";

	// Get file information
	$filename = $_FILES[$cfile]['name'];
	$filesize = $_FILES[$cfile]['size'];
	$filetype = $_FILES[$cfile]['type'];
	$file_tmp = $_FILES[$cfile]['tmp_name'];
	$file_err = $_FILES[$cfile]['error'];
	$file_ext = strrchr($filename, '.');

	if (($file_err == 0) && ($filesize != 0)) // Check for upload errors
		{
		if (!$file_ext) // Check if file has an extension
			{
			unlink($file_tmp);
			$_UPLOADERROR = $errorMessages[0];
			return 0;
			}

		if (is_uploaded_file($file_tmp)) // Check if the file exists on our server
			{
			$dir = _UPLOADPATH;
			if (!is_dir($dir)) // Check if upload directory exists.
				{
				if (!mkdir($dir, _UPLOADDIR)) //If not, try and make it.
					{
					unlink($file_tmp);
					$_UPLOADERROR = $errorMessages[1];
					return 0;
					}
				}

			if (file_exists("{$dir}/{$filename}"))
				{
				$filen_id=1;
				$filen=$filename;
				$file_r=substr($filename, 0, strrpos($filename, "."));
				while (true)
					{
					if (file_exists("{$dir}/{$filen}"))
						{
						$filen=$file_r.$filen_id.$file_ext; // Append a number to the end.
						$filen_id++;
						}
					else
						{
						$filename=$filen; // Update file name and continue
						break;
						}						
					}
				}

			@chmod($dir, _UPLOADDIR);

			if (@move_uploaded_file($file_tmp, "{$dir}/{$filename}")) // Try and save the file
				{
				if (chmod("{$dir}/{$filename}", _UPLOADCHMOD)) // Try and set permissions
					{
					return preg_replace("@[/]+@", "/", "{$dir}/{$filename}");
					}
				else
					{
					@unlink("{$dir}/{$filename}");
					$_UPLOADERROR = $errorMessages[2];
					return 0;
					}
				} 
			else 
				{ 
				@unlink($file_tmp); 
				$_UPLOADERROR = $errorMessages[3];
				return 0;
				} 
			} 
		else 
			{ 
			@unlink($file_tmp); 
			$_UPLOADERROR = $errorMessage[4];
			} 
		} 
	else 
		{ 
		if ($file_tmp != '') 
			{ 
			@unlink($file_tmp); 
			} 
		switch ($file_err) 
			{
			case '0':
			$_UPLOADERROR = $errorMessge[5]; 
			break;
			case '1':
			$_UPLOADERROR = $errorMessage[6];
			break; 
			case '2':
			$_UPLOADERROR = $errorMessage[7];
			break; 
			case '3':
			$_UPLOADERROR = $errorMessage[8];
			break;
			case '4':
			$_UPLOADERROR = $errorMessage[9];
			break;
			case '6':
			$_UPLOADERROR = $errorMessage[10];
			break;
			case '7':
			$_UPLOADERROR = $errorMessage[11];
			break;
			case '8':
			$_UPLOADERROR = $errorMessage[12];
			break;
			default:
			$_UPLOADERROR = $errorMessage[13];
			break;
			}
		return 0;
		}
	}

?>

 

Create that file and save it wherever you want. Then, simply include it on the file upload script and run something similar to this:

 

if (isset($_FILES))
	{
	foreach ($_FILES as $key=>$file)
		{
		if (!empty($file['name']))
			{
			echo uploadFiles($key);
			}
		}
	}

 

I have also attached a full working demo.

 

[attachment deleted by admin]