我们在使用
一般这种问题出现的原因是 mail() 函数的 header 参数里少了 Content-type: text/html; charset=utf-8,或者 charset 不是utf-8。很多国外的PHP程序一开始开发的时候没有吧中文考虑进去，所以中文使用的时候就会出现PHP mail()函数乱码。
先用函数base64_encode() 使用 MIME base64 对数据进行编码
标题字符串前加编码类型例如： =?UTF-8?B?
当然如果是gb2312的话就 =?GB2312?B?
标题字符串后加：?=
PHP mail()函数乱码的处理办法举例如下
<ol class="dp-xml">
<li class="alt"><span><span>$</span><span class="attribute">to</span><span> = </span><span class="attribute-value">'xinple@example.com'</span><span>; </span></span></li>
<li>
<span>$</span><span class="attribute">subject</span><span> = </span><span class="attribute-value">"=?UTF-8?B?"</span><span>.<br>base64_encode('邮件标题')."?="; </span>
</li>
<li class="alt">
<span>$</span><span class="attribute">headers</span><span> = </span><span class="attribute-value">'MIME-Version: 1.0'</span><span> . "rn"; </span>
</li>
<li>
<span>$headers </span><span class="attribute">.</span><span>= </span><span class="attribute-value">'Content-type: <br>text/html; charset=utf-8'</span><span> . "rn"; </span>
</li>
<li class="alt"><span>// Additional headers </span></li>
<li>
<span>$headers </span><span class="attribute">.</span><span>= </span><span class="attribute-value">'To: Xinple <<br />< a href="mailto:xinple@example.com"><br />xinple@example.com</a>>'</span><span> . "rn"; </span>
</li>
<li class="alt">
<span>$headers </span><span class="attribute">.</span><span>= </span><span class="attribute-value">'From: Admin <<br /><a href="mailto:admin@example.com"><br />admin@example.com</a>>'</span><span> . "rn"; </span>
</li>
<li>
<span>$headers </span><span class="attribute">.</span><span>= </span><span class="attribute-value">'Reply-To: Xinple <xinple@example>'</span><span> . "rn"; </span>
</li>
<li class="alt"><span>mail($to, $subject, $message, $headers); </span></li>
</ol>以上就是PHP mail()函数乱码的具体处理办法，希望对有需要的朋友有所帮助。
