PHP发送邮件

<?php $envelope["from"]= "joe@example.com";$envelope["to"]  = "foo@example.com";$envelope["cc"]  = "bar@example.com";$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));?>