<?PHP
/**
 * 发送邮件
 *
 * @param 
 * @arrange (512.笔记) jb51.cc
 **/
function send_mail($emailaddress,$fromaddress,$namefrom,$emailsubject,$body)
{
$eol="\n";
$mime_boundary=md5(time());

# Common Headers
$headers .= "From: $namefrom <$fromaddress>".$eol;
$headers .= "Reply-To: $namefrom <$fromaddress>".$eol;
$headers .= "Return-Path: $namefrom <$fromaddress>".$eol;
// these two to set reply address
$headers .= "Message-ID: <".$now." TheSystem@".$_SERVER['SERVER_NAME'].">".$eol;
$headers .= "X-Mailer: PHP v".PHPversion().$eol; // These two to help avoid spam-filters

# Boundry for marking the split & Multitype Headers
$headers .= 'MIME-Version: 1.0'.$eol;
$headers .= "Content-Type: multipart/related; boundary=\"".$mime_boundary."\"".$eol;

$msg = "";

# Setup for text OR html
$msg .= "Content-Type: multipart/alternative".$eol;

# Text Version
$msg .= "--".$mime_boundary.$eol;
$msg .= "Content-Type: text/plain; charset=iso-8859-1".$eol;
$msg .= "Content-Transfer-Encoding: 8bit".$eol;
$msg .= strip_tags(str_replace("<br>","\n",$body)).$eol.$eol;

# HTML Version
$msg .= "--".$mime_boundary.$eol;
$msg .= "Content-Type: text/html; charset=iso-8859-1".$eol;
$msg .= "Content-Transfer-Encoding: 8bit".$eol;
$msg .= $body.$eol.$eol;

# Finished
$msg .= "--".$mime_boundary."--".$eol.$eol; // finish with two eol's for better security. see Injection.

# SEND THE EMAIL
// ini_set(sendmail_from,$fromaddress); // the INI lines are to force the From Address to be used !
mail($emailaddress,$msg,$headers);

// ini_restore(sendmail_from);
// echo "mail send";
return 1;
}