html email php function

email.php

<?php #-*- coding: utf-8 -*-



/***
 * 
 * @return bool true if email sent, false otherwise
 */
function email($to, $from, $subject, $html, $attachments=array(),
                            $bcc=false, $reply=false )
{
    foreach(array('to','bcc','from','reply','subject') as $varname)
    {
        /**
        * remove dangerous chars for headers from a string( \n \l \r )
        */
        $$varname = strtr($$varname,
                          array("\n" => '',"\l" => '',"\r" => ''));
    }
    
    /*
      Generate boundary & headers
    */
    $reply = $reply ? $reply : $from;
    $text = strip_tags($html);

    $headers = array();
    $headers[] = "X-Priority: 1 (Higuest)";
    $headers[] = "X-MSMail-Priority: High";
    $headers[] = "Importance: High";
    $headers[] = 'From: '.$from;
    $headers[] = 'Return-Path: '.$reply;
    if($bcc) $headers[] = 'Bcc: '.$reply;
    $headers[] = 'MIME-Version: 1.0';
    $msg_boundary = '-------=part' . md5(uniqid(mt_rand()));
    $headers[] = 'Content-Type: multipart/mixed; boundary="'.$msg_boundary.'"';
    $headers[] = 'This is a multi-part message in MIME format.';
    $headers[] = '--'.$msg_boundary;    
    
    /*
        text
    */

    $boundary = '-------=part' . md5(uniqid(mt_rand()));
    $headers[] = 'Content-Type: multipart/alternative; boundary="'.$boundary.'"';
    
    $headers[] = '--'.$boundary;
    $headers[] = 'Content-Type: text/plain; charset="utf-8"';
    $headers[] = 'Content-Transfer-Encoding: quoted-printable';
    $headers[] = 'Content-Disposition: inline';
    $headers[] = "";
    $headers[] = $text;
    $headers[] = "";
    
    /*
      html part
    */
    $headers[] = '--'.$boundary;
    $headers[] = 'Content-Type: text/html; charset="utf-8"';
    $headers[] = 'Content-Transfer-Encoding: quoted-printable';
    $headers[] = 'Content-Disposition: inline';
    $headers[] = "";
    $headers[] = $html;
    $headers[] = "";

    $headers[] = '';
    $headers[] = '--'.$boundary.'--';
    $headers[] = '';

    /*
     handle attachments
    */
    if( !is_array($attachments) )
        $attachments = array();
    foreach( $attachments as $file )
    {
        if(!file_exists($file))
            trigger_error('[email] file '.$file.' does not exits');
        $mimetype = mimetype($file);
        $name = urlize(basename($file));
        
        $headers[] = '--'.$msg_boundary;
        $headers[] = 'Content-Type: '.$mimetype.'; name="'.$name.'"';
        $headers[] = 'Content-Transfer-Encoding: base64';
        $headers[] = 'Content-Disposition:inline; '
                        .'filename="'.$name.'"';
                        
        $headers[] = '';
        $headers[] = chunk_split(base64_encode(file_get_contents($file)));
        $headers[] = '';
    }
    $headers[] = '';
    $headers[] = '--'.$msg_boundary.'--';
    $headers[] = '';
    
    return mail($to,$subject,'',join("\n",$headers) );
}
//- email()