PHP A simple SMTP class_php instance

smtp.class.php

Copy Code code as follows:

<?php

Define (' smtp_status_not_connected ', 1, TRUE);
Define (' smtp_status_connected ', 2, TRUE);

Class SMTP
{

var $connection;
var $recipients;
var $headers;
var $timeout;
var $errors;
var $status;
var $body;
var $from;
var $host;
var $port;
var $helo;
var $auth;
var $user;
var $pass;
var $debug;

/**
* parameter is an array
* Host SMTP server default: localhost
* Ports of Port SMTP server default: 25
* Helo the name of the HELO command is sent by default: localhost
* User SMTP server username default: null value
* Pass SMTP Server login password default: null value
* Timeout Connection Timeout time default: 5
* @return BOOL
*/

function smtp ($params = Array ())
{

if (!defined (' CRLF ')) define (' CRLF ', ' \ r \ n ', TRUE);

$this->timeout = 5;
$this->status = smtp_status_not_connected;
$this->host = ' localhost ';
$this->port = 25;
$this->auth = FALSE;
$this->user = ";
$this->pass = ";
$this->errors = Array ();
$this->debug = false;
foreach ($params as $key => $value)
{
$this-> $key = $value;
}

$this->helo = $this->host;

Do not validate if no user name is set
$this->auth = ("= = $this->user)?" False:true;
}

Function Connect ($params = Array ())
{

if (!isset ($this->status))
{
$obj = new SMTP ($PARAMS);

if ($obj->connect ())
{
$obj->status = smtp_status_connected;
}

return $obj;

}
Else
{

$this->connection = Fsockopen ($this->host, $this->port, $errno, $errstr, $this->timeout);
Socket_set_timeout ($this->connection, 0, 250000);

$greeting = $this->get_data ();

if (Is_resource ($this->connection))
{
$this->status = 2;
Return $this->auth? $this->ehlo (): $this->helo ();
}
Else
{
$this->errors[] = ' Failed to connect to the to server: '. $errstr;
return FALSE;
}
}
}

/**
* parameter is an array
* Recipients array of recipients
* FROM Sender's address, also as reply address
* Headers array of header information
* Body of the message
*/

function Send ($params = Array ())
{

foreach ($params as $key => $value)
{
$this->set ($key, $value);
}

if ($this->is_connected ())
{
Whether the server requires authentication
if ($this->auth)
{
if (! $this->auth ()) return FALSE;
}

$this->mail ($this->from);

if (Is_array ($this->recipients))
{
foreach ($this->recipients as $value)
{
$this->rcpt ($value);
}
}
Else
{
$this->rcpt ($this->recipients);
}

if (! $this->data ()) return FALSE;

$headers = Str_replace (CRLF. ', CRLF. '), Trim (Implode (CRLF, $this->headers));
$body = Str_replace (CRLF. ', CRLF. ', $this->body);
$body = $body [0] = = '. '? ‘.'. $body: $body;

$this->send_data ($headers);
$this->send_data (");
$this->send_data ($body);
$this->send_data ('. ');

Return (substr (Trim ($this->get_data ()), 0, 3) = = ' 250′ ');
}
Else
{
$this->errors[] = ' not connected! ';
return FALSE;
}
}

function Helo ()
{
if (Is_resource ($this->connection)
and $this->send_data (' HELO '. $this->helo)
and substr (Trim ($error = $this->get_data ()), 0, 3) = = ' 250′ ')
{
return TRUE;

}
Else
{
$this->errors[] = ' HELO command failed, output: '. Trim (substr (Trim ($error), 3));
return FALSE;
}
}

function Ehlo ()
{
if (Is_resource ($this->connection)
and $this->send_data (' EHLO '. $this->helo)
and substr (Trim ($error = $this->get_data ()), 0, 3) = = ' 250′ ')
{
return TRUE;
}
Else
{
$this->errors[] = ' EHLO command failed, output: '. Trim (substr (Trim ($error), 3));
return FALSE;
}
}

function auth ()
{
if (Is_resource ($this->connection)
and $this->send_data (' AUTH LOGIN ')
and substr (Trim ($error = $this->get_data ()), 0, 3) = = ' 334′
and $this->send_data (Base64_encode ($this->user))/Send username
and substr (Trim ($error = $this->get_data ()), 0, 3) = = ' 334′
and $this->send_data (Base64_encode ($this->pass))/Send password
and substr (Trim ($error = $this->get_data ()), 0, 3) = = ' 235′ ')
{
return TRUE;
}
Else
{
$this->errors[] = ' AUTH command failed: '. Trim (substr (Trim ($error), 3));
return FALSE;
}
}

function mail ($from)
{

if ($this->is_connected ()
and $this->send_data (' MAIL from:< '. $from. > ')
and substr (Trim ($this->get_data ()), 0, 2) = = ' 250′ ')
{
return TRUE;
}
Else
{
return FALSE;
}
}

Function Rcpt ($to)
{
if ($this->is_connected ()
and $this->send_data (' RCPT to:< '. $to. > ')
and substr (Trim ($error = $this->get_data ()), 0, 2) = = ' 25′ ')
{
return TRUE;
}
Else
{
$this->errors[] = Trim (substr (Trim ($error), 3));
return FALSE;
}
}

function data ()
{

if ($this->is_connected ()
and $this->send_data (' data ')
and substr (Trim ($error = $this->get_data ()), 0, 3) = = ' 354′ ')
{
return TRUE;
}
Else
{
$this->errors[] = Trim (substr (Trim ($error), 3));
return FALSE;
}
}

function is_connected ()
{
Return (Is_resource ($this->connection) and ($this->status = = smtp_status_connected));
}

function Send_data ($data)
{
if (Is_resource ($this->connection))
{
if ($this->debug)
Echo nl2br ($data. CRLF);
Return fwrite ($this->connection, $data. CRLF, strlen ($data) +2);
}
Else
{
return FALSE;
}
}

function &get_data ()
{

$return = ";
$line = ";

if (Is_resource ($this->connection))
{
while (Strpos ($return, CRLF) = = FALSE OR substr ($line, 3, 1)!== ')
{
$line = fgets ($this->connection, 512);
$return. = $line;
}
if ($this->debug===true)
Echo nl2br ($return. CRLF);
return $return;

}
Else
{
return FALSE;
}
}

function set ($var, $value)
{
$this-> $var = $value;
return TRUE;
}
}//End of class
?>