imap_mail_compose函数怎么用呢？

Question

我使用的是帮助文档里的例子，可是报错
Fatal error: Call to undefined function imap_mail_compose()
源代码$envelope["from"]= "[email protected]";
$envelope["to"]  = "[email protected]";
$envelope["cc"]  = "[email protected]";$part1["type"] = TYPEMULTIPART;
$part1["subtype"] = "mixed";$filename = "/tmp/imap.c.gz";
$fp = fopen($filename, "r");
$contents = fread($fp, filesize($filename));
fclose($fp);$part2["type"] = TYPEAPPLICATION;
$part2["encoding"] = ENCBINARY;
$part2["subtype"] = "octet-stream";
$part2["description"] = basename($filename);
$part2["contents.data"] = $contents;$part3["type"] = TYPETEXT;
$part3["subtype"] = "plain";
$part3["description"] = "description3";
$part3["contents.data"] = "contents.data3\n\n\n\t";$body[1] = $part1;
$body[2] = $part2;
$body[3] = $part3;echo nl2br(imap_mail_compose($envelope, $body));

Answer 1

系统的Path中也加入了C:\PHP\ext路径，这个是啥子问题呢，难道要架设邮件服务器？