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Send Email With PHP in UTF-8

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In my previous article Configure Mail Service with PHP Mail Function and Postfix, I described how to set up an environment to send mail with php on Linux.

Here, I will solve an issue which met by a lot of people, confused but don’t know how to do: How to send mail in UTF-8? Here I will tell you how to send an email with not only a UTF-8 subject but also a UTF-8 content. It’s simple. Just read the following code. Quote your subject with '=?UTF-8?B?' and '?='. You may choose to use HTML to edit your email content, just don’t forget to declare UTF-8 character set. That’s all.

<?php

/**
 * Created by Leon on 22, August, 2011
 * http://leons.im
 */

function sendmail($to, $code)
{
    $sender = "test@leons.im";
    list($user, $domain) = split("@", $to, 2);
    $subject = "测试主题";
    $subject = '=?UTF-8?B?'.base64_encode($subject).'?=';

    $from = "Test <${sender}>";
    $mime_boundary = "----Lite----".md5(time());
 
    $message = "--$mime_boundaryn";

    $message .= "Content-Type: text/html; charset=UTF-8n"; 
    $message .= "Content-Transfer-Encoding: 8bitnn"; 
    
    $message .= "<html><head></head><body>n";
    $message .= "你好！<br>n";
    $message .= "欢迎访问我的网站<a href=\"http://leons.im\" target=\"_blank\">http://leons.im</a><br>n";

    $message .= "</body></html>n";

    $message .= "--$mime_boundary--nn";

    //echo "message = $messagen";

    $headers = "From: Test <${sender}>n"; 
    $headers .= "Reply-To: Test <${sender}>n"; 
    $headers .= "MIME-Version: 1.0n";
    $headers .= "Content-Type: multipart/alternative; boundary=\"$mime_boundary\"\n";

    $addtional = "-f ${sender}";
    return mail($to, $subject, $message, $headers, $addtional);
}
?>

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