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为什么php mail 函数第四个参数 头部 当做内容发出去？

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Release： 2016-06-06 20:29:48
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为什么php mail 函数第四个参数 头部 当做内容发出去？
为什么php mail 函数第四个参数 头部 当做内容发出去？

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为什么php mail 函数第四个参数 头部 当做内容发出去？
为什么php mail 函数第四个参数 头部 当做内容发出去？

因为ContentType是当你的邮件内容是HTML的时候，告诉它怎么显示的

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