==============================================================================
=2 && substr($line,$length-2,2)=="\r\n")
return(substr($line,0,$length-2));
}
}
Function PutLine($connection,$line)
{
return(fputs($connection,"$line\r\n"));
}
Function ValidateEmailAddress($email)
{
//return(eregi($this->email_regular_expression,$email)!=0);
return(eregi("^([a-z0-9_] ¦\\\\- ¦\\\\.)+@(([a-z0-9_] ¦\\\\-)+\\\\.)+[a-z]{2,4}$",$email)!=0);
}
Function ValidateEmailHost($email,$hosts=0)
{
if(!$this->ValidateEmailAddress($email))
return(0);
$user=strtok($email,"@");
$domain=strtok("");
if(GetMXRR($domain,&$hosts,&$weights))
{
$mxhosts=array();
for($host=0;$host
```
GetLine($connection)))
{
if(!strcmp(strtok($line," "),$code))
return(1);
if(strcmp(strtok($line,"-"),$code))
return(0);
}
return(-1);
}
Function ValidateEmailBox($email)
{
if(!$this->ValidateEmailHost($email,&$hosts))
return(0);
if(!strcmp($localhost=$this->localhost,"") && !strcmp($localhost=getenv("SERVER_NAME"),"") && !strcmp($localhost=getenv("HOST"),""))
$localhost="localhost";
if(!strcmp($localuser=$this->localuser,"") && !strcmp($localuser=getenv("USERNAME"),"") && !strcmp($localuser=getenv("USER"),""))
$localuser="root";
for($host=0;$hosttimeout ? fsockopen($hosts[$host],25,&$errno,&$error,$this->timeout) : fsockopen($hosts[$host],25))))
{
if($this->VerifyResultLines($connection,"220")>0 && $this->PutLine($connection,"HELO $localhost") && $this->VerifyResultLines($connection,"250")>0 && $this->PutLine($connection,"MAIL FROM: <$localuser@$localhost>") && $this->VerifyResultLines($connection,"250")>0 && $this->PutLine($connection,"RCPT TO: <$email>") && ($result=$this->VerifyResultLines($connection,"250"))>=0)
{
fclose($connection);
return($result);
}
fclose($connection);
}
}
return(-1);
}
};
?>
=============================================================================
\-----------------------------------------------------------------------------
应用范例：
=============================================================================
echo "
检查电子邮件地址的正确性:
";
$newmail = "[email protected]";
require("email_validation.php3");
$validator=new email_validation_class;
$validator->timeout=10;
if(IsSet($newemail) && strcmp($newemail,""))
{
if(($result=$validator->ValidateEmailBox($newemail))<0)
{
echo "不能确定您的信箱是否正确. 您的信箱离这里太远了吧?
";
return;
}
else
{
if(!$result)
{
echo "您输入的信箱地址是不正确的! :)
";
return;
}
else
echo "邮箱合法!
";
}
}
=============================================================================
```