Email met attachments class

<?
/****************************************************************/
/*	 	Content Management System    	       		*/
/* -------------------------------------------------------------*/
/*            							*/
/*	File 		: class_mail_attachment.php		*/
/*	Version		: 1.0.1					*/
/*	Last modified	: 20/05/2006				*/
/*								*/
/*	Author		: B.Kreleger */
/*                                                              */
/****************************************************************/

/*	Description						*/
/*--------------------------------------------------------------*/
/*	Mail class which can send optional attachments.		*/

error_reporting(E_ALL);

class MailAttach
{
	//-----------------------
	//-- constructor
	//-----------------------
	function MailAttach()
	{
		//-----------------------
		//-- config (change this)
		//-----------------------
		
		$this->go_email = "[email protected]"; // to e-mail address
		$this->go_name = "Naam van Ontvanger"; // to name
		
		$this->reply_email = "[email protected]"; // from e-mail address
		$this->reply_name = "Naam van Afzender"; // from name
		
		//-- attachment settings
		$this->mb = 1048576; // 1Mb in bytes
		$this->max_file_size = 5; // Max file size of attachment(s) in Mb's
		
		$this->file_size_count = 1; // 1 = total size of all attachments
					    // 2 = size per attachment
		
		//-----------------------
		//-- errors
		//-----------------------
		
		//-- file error
		$this->error[0] = "<pre><code><b>Error 0:</b><br />Mail could not be send: File could not be opened or does not exist.</code></pre>";
		
		//-- file error
		$this->error[1] = "<pre><code><b>Error 1:</b><br />Mail could not be send: Filesize is unkown.</code></pre>";
		
		//-- sendmail error
		$this->error[2] = "<pre><code><b>Error 2:</b><br />Mail could not be send: Something's wrong with the mail function.</code></pre>";
		
		//-- attachment error
		$this->error[3] = "<pre><code><b>Error 3:</b><br />Mail could not be send: Attachment is too big (max: " . $this->mb * $this->max_file_size . " bytes).</code></pre>";
		
		//-- attachment error
		$this->error[4] = "<pre><code><b>Error 4:</b><br />Mail could not be send: Attachment is not unique.</code></pre>";
		
		//-----------------------
		//-- results
		//-----------------------
		
		//-- email with attachment sent
		$this->result[0] = "<p><b>E-mail met bijlage verstuurd</b></p>";
		
		//-- email without attachment sent
		$this->result[1] = "<p><b>E-mail verstuurd</b></p>";
	}
	
	//-----------------------
	//-- sendmail function
	//-----------------------
	function SendMailAttach ($subject, $message, $files = '', $to_name = '', $to_email = '', $from_name = '', $from_email = '')
	{
		//-- generate boundary
		$bound = md5(uniqid(time()));
		
		//-- check for "TO" addresses
		if (empty($to_name))
			$to_name = $this->go_name;
		if (empty($to_email))
			$to_email = $this->go_email;

		//-- check for "FROM" adresses
		if (empty($from_name))
			$from_name = $this->reply_name;
		if (empty($from_email))
			$from_email = $this->reply_email;
			
		if (!empty($files))
		{
			$headers = "From: " . $from_name . " <" . $from_email . ">\r\n";
			$headers .= "MIME-Version: 1.0\r\n";
			
			//-- mixed
			$headers .= "Content-Type: multipart/mixed; boundary=\"" . $bound . "\"\r\n";
			
			//-- sent attachment
			$headers .= "Content-Disposition:  attachment\r\n";
			
			//-- create body
			$body = "This is a multi-part message in MIME format.\r\n";
			$body .= "\r\n";
			
			//-- bound
			$body.= "--" . $bound . "\r\n";
			
			//-- charset
			$body.= "Content-Type: text/plain; charset=iso-8859-1\r\n";
			
			//-- 7bit coding
			$body.= "Content-Transfer-Encoding: 7bit\r\n";
			$body.= "\r\n";
			
			//-- message
			$body.= $message ."\r\n";
			
			foreach($files as $filename)
			{
				//-- set array with filename
				if (empty($attachment_name))
					$attachment_name = array();
				
				if (in_array($filename, $attachment_name))
					die($this->error[4]);
				else
					$attachment_name[] = $filename;
				
				//-- read content
				if ($fp = @fopen($filename, 'r'))
				{
					if ($filesize = @filesize($filename))
						$inhoud = fread($fp, $filesize);
					else
						die($this->error[1]);
						
					fclose($fp);
				}
				else
					die($this->error[0]);
					
				//-- check if filesize is below maximum
				if ($filesize > ($this->mb * $this->max_file_size))
					die($this->error[3]);
					
				//-- check for filesize counting
				if ($this->file_size_count == 1)
				{
					//-- calculate total of all files
					if (empty($total_filesize))
						$total_filesize = $filesize;
					else
					{
						$total_filesize = $total_filesize + $filesize;
						
						//-- check if total filesize is below maximum
						if ($total_filesize > ($this->mb * $this->max_file_size))
							die($this->error[3]);
					}
				}
				
				//-- bound
				$body .= "--" . $bound . "\r\n";
				
				//-- userfriendly filename
				$show_filename_array = explode("/", $filename);
				$show_filename = $show_filename_array[count($show_filename_array)-1];
								
				//-- content type + name file
				$body .= "Content-Type: application/octet-stream; name=" . $show_filename . ";\r\n";
				
				//-- base64 encoding
				$body .= "Content-Transfer-Encoding: base64\r\n";
				
				//-- attached as attachment
				$body .= "Content-disposition: attachment\r\n";
				$body .= "\n";
				
				//-- content of attachment
				$body .= chunk_split(base64_encode($inhoud)) . "\r\n";
			}
			
			if (mail($to_name . " <" . $to_email . ">", $subject, $body, $headers))
				return $this->result[0];
			else
				die($this->error[2]);
		}
		//-- no attachment has been added, send e-mail without attachment
		else
		{
			$headers = "From: " . $from_name . " <" . $from_email . ">\r\n";
   			$headers .= "MIME-Version: 1.0\r\n";
   			$message;
   			
   			mail($to_name . " <" . $to_email . ">", $subject, $message, $headers);
   			
   			return $this->result[1];
 		}
	 }
}
?>