PHP で PEAR::Mail を使ってメールにファイルを添付して凄く簡単にメール送信する

$data = Array(
    'to' => 'info@weble.org',
    'from' => 'info@example.com',
    'name' => '団体名',
    'subject' => 'タイトル',
    'body' => '内容',
    'option' => Array('file' => '/uploads/2012/screenshot-2012-06-03.png')
);
if(mail_post($data)) {
    echo 'メール送信成功';
} else {
    echo 'メール送信失敗';
}

sudo pear install -a Mail
sudo pear install -a Mail_mime

function mail_post($data, $document_root = '/var/www/html')
{
    if(isset($data['option']['file'])) {
 
        $pear_mail = include_once("Mail.php");
        $pear_mail_mime = include_once("Mail/mime.php");
 
        if($pear_mail && $pear_mail_mime) {
 
            preg_match('/[^\/]+$/', $data['option']['file'], $filename);
            mb_convert_variables('JIS', 'UTF-8', $data['body'], $filename[0]);
 
            $mime = new Mail_mime;
            $mime->setParam('text_charset', 'ISO-2022-JP');
            $mime->setParam('text_encoding', '8bit');
            $mime->setTxtBody($data['body']);
            $mime->addAttachment($document_root . $data['option']['file'], null, $filename[0]);
            $headers = array(
                'From' => $data['from'], 'To' => $data['to'],
                'Subject' => mb_encode_mimeheader(mb_convert_encoding($data['subject'], 'JIS', 'UTF-8'), 'JIS'),
            );
            $headers = $mime->headers($headers);
            $body = $mime->get();
 
            $mail = Mail::factory('sendmail');
            return $mail->send($data['to'], $headers, $body);
        } else {
            return false;
        }
    } else {
        mb_language("japanese");
        mb_internal_encoding("UTF-8");
        $to = $data['to'];
        $from = mb_encode_mimeheader(mb_convert_encoding($data['name'], "JIS", "UTF-8")) . "<{$data['from']}>";
        return mb_send_mail($to, $data['subject'], $data['body'], "From:{$from}");
    }
}