It 's a multipart question , so answer carefully .
有几部分的问题，要仔细答。
To demonstrate one method of sending multipart emails with php , let 's write a function to accept an email address and send a message to it with multiple parts .
为了演示一个用php发送复合电子邮件的方法，我们编写了一个函数接收一个邮件地址和发送一个复合邮件。
In 2009 , for example , the new york city police department made headlines when it spent nearly $ 1 million on typewriters , mostly so it could continue to use multipart carbon forms for processing evidence .
The atp is part of a multipart signaling system that includes track circuits that detect whether there is activity on a particular stretch of track they don 't see or sense other trains ahead like radar might .
This entry was aimed at showing the anatomy of a multipart email message , as well as demonstrating the use of the heredoc syntax to easily put headers in place .
