非常简单的一个smtp邮箱发信案例

<?php
$config = array(
	"host" => "smtp.exmail.qq.com",//百度stmp发信服务器
    "port" => "465",//很多IDC不支持25端口发信请自行测试
    "fromname" => "杨小杰博客订阅号",//发信人名称(可中文)
	"username" => "",//发信账号
    "password" => "",//发信密码
    "from" => "",//发信邮箱地址(与发信账号一致即可)
);