SMTP implementation of the Send mail function in PHP

This article mainly and you introduce the PHP SMTP implementation of the sending mail function, with a certain reference value, interested in the small partners can refer to, hope to learn how to use the SMTP implementation of PHP to send mail.

<?phpheader ("content-type:text/html; Charset=utf-8 "); Class smtp{/* Public Variables */var $smtp _port, var $time _out, var $host _name, var $log _file, var $relay _host, var $deb Ug var $auth; var $user;  var $pass;  /* Private Variables */var $sock;  /* Constractor */function smtp ($relay _host = "", $smtp _port = +, $auth = False, $user, $pass) {$this->debug = false;  $this->smtp_port = $smtp _port;  $this->relay_host = $relay _host; $this->time_out = 30;  is used in Fsockopen () $this->auth = $auth;//auth $this->user = $user;  $this->pass = $pass; $this->host_name = "localhost";  is used in HELO command $this->log_file = "";  $this->sock = FALSE;} /* Main function */function SendMail ($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $BCC = "", $additional _h  Eaders = "") {$mail _from = $this->get_address ($this->strip_comment ($from)); $body = Preg_replace ("/(^| ( \ n)) (\.)  /"," \1.\3 ", $body);  $header = "mime-version:1.0\r\n"; If($mailtype = = "HTML")  {$header. = "content-type:text/html\r\n"; } $header. = "To:" $to. "  \ r \ n "; if ($cc! = "") {$header. = "cc:". $cc. "  \ r \ n "; } $header. = "From: $from <". $from. "  >\r\n "; $header. = "Subject:". $subject. "  \ r \ n ";  $header. = $additional _headers; $header. = "Date:". Date ("R"). "  \ r \ n "; $header. = "X-mailer:by Redhat (php/". Phpversion (). ")  \ r \ n ";  List ($msec, $sec) = Explode ("", Microtime ()); $header. = "Message-id: <". Date ("Ymdhis", $sec). ".". ($msec *1000000). ".". $mail _from. "  >\r\n ";   $TO = Explode (",", $this->strip_comment ($to));   if ($cc! = "") {$TO = Array_merge ($TO, Explode (",", $this->strip_comment ($CC)));  if ($bcc! = "") {$TO = Array_merge ($TO, Explode (",", $this->strip_comment ($BCC)));  } $sent = TRUE;   foreach ($TO as $rcpt _to) {$rcpt _to = $this->get_address ($rcpt _to); if (! $this->smtp_sockopen ($rcpt _to)) {$this->log_write ("Error:cannot send email to". $rcpt _to. "    \ n ");    $sent = FALSE; ContiNue } if ($this->smtp_send ($this->host_name, $mail _from, $rcpt _to, $header, $body)) {$this->log_write ("E-mai l have been sent to < ". $rcpt _to."   >\n "); } else {$this->log_write ("Error:cannot Send email to <". $rcpt _to. "    >\n ");   $sent = FALSE;   } fclose ($this->sock);  $this->log_write ("Disconnected from remote host\n"); } return $sent; }/* Private Functions */function Smtp_send ($helo, $from, $to, $header, $body = "") {if (! $this->smtp_putcmd ("Helo"  , $helo)) {return $this->smtp_error ("Sending HELO command");  } #auth if ($this->auth) {if (! $this->smtp_putcmd ("Auth LOGIN", Base64_encode ($this->user)) {return   $this->smtp_error ("Sending HELO command"); } if (! $this->smtp_putcmd ("", Base64_encode ($this->pass)) {return $this->smtp_error ("Sending HELO comma   nd "); }} if (! $this->smtp_putcmd ("MAIL", "from:<". $from. " > ") {return $this->smtp_error (" Sending MAIL from command "); if (! $this->smtp_putcmd ("RCPT", "to:<". $to. "  > ") {return $this->smtp_error (" Sending RCPT to command ");  } if (! $this->smtp_putcmd ("data")) {return $this->smtp_error ("Sending data Command");  } if (! $this->smtp_message ($header, $body)) {return $this->smtp_error ("Sending message"); } if (! $this->smtp_eom ()) {return $this->smtp_error ("Sending <CR><LF>.<CR><LF> [EOM]")  ;  } if (! $this->smtp_putcmd ("Quit")) {return $this->smtp_error ("Sending quit Command"); } return TRUE;  } function Smtp_sockopen ($address) {if ($this->relay_host = = "") {return $this->smtp_sockopen_mx ($address);  } else {return $this->smtp_sockopen_relay (); }} function Smtp_sockopen_relay () {$this->log_write ("Trying to". $this->relay_host. ":". $this->smtp_port. "  \ n ");  $this->sock = @fsockopen ($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out); if (!   ($this->sock && $this-&GT;SMTP_OK ())) {$this->log_write ("Error:cannot connenct to relay host". $this->relay_host. "   \ n "); $this->log_write ("Error:". $errstr. " (". $errno.")   \ n ");  return FALSE; } $this->log_write ("Connected to relay Host". $this->relay_host. "  \ n "); return TRUE;;  } function Smtp_sockopen_mx ($address) {$domain = Preg_replace ("^.+@ ([^@]+) $", "\1", $address); if (! @getmxrr ($domain, $MXHOSTS)) {$this->log_write ("error:cannot resolve MX \" ". $domain."   \ "\ n");  return FALSE; } foreach ($MXHOSTS as $host) {$this->log_write ("Trying to". $host. ":". $this->smtp_port. "   \ n ");   $this->sock = @fsockopen ($host, $this->smtp_port, $errno, $errstr, $this->time_out); if (! ( $this->sock && $this->smtp_ok ()) {$this->log_write ("Warning:cannot Connect to MX host". $host. "    \ n "); $this->log_write ("Error:". $errstr. " (". $errno.")    \ n ");   Continue } $this->log_write ("Connected to MX host". $Host. "   \ n ");  return TRUE; } $this->log_write ("Error:cannot connect to any MX hosts (". Implode (",", $MXHOSTS). ")  \ n "); return FALSE; } function Smtp_message ($header, $body) {fputs ($this->sock, $header. "  \ r \ n ". $body); $this->smtp_debug (">". Str_replace ("\ r \ n", "\ n".) > ", $header." \n> ". $body."  \n> ")); return TRUE;  } function Smtp_eom () {fputs ($this->sock, "\r\n.\r\n"); $this->smtp_debug (".  [eom]\n "); return $this-&GT;SMTP_OK ();  } function Smtp_ok () {$response = Str_replace ("\ r \ n", "", Fgets ($this->sock, 512)); $this->smtp_debug ($response. "  \ n ");   if (!preg_match ("/^[23]/", $response)) {fputs ($this->sock, "quit\r\n");   Fgets ($this->sock, 512); $this->log_write ("Error:remote host returned \" ". $response."   \ "\ n");  return FALSE; } return TRUE;   } function Smtp_putcmd ($cmd, $arg = "") {if ($arg! = "") {if ($cmd = = "") {$cmd = $arg; } else {$cmd = $cmd. "   ". $arg; }} fputs ($this->sock, $cmd. " \ r \ n "); $this->smtp_debug (">". $cmd. "  \ n "); return $this-&GT;SMTP_OK (); } function Smtp_error ($string) {$this->log_write ("Error:error occurred while". $string. ".  \ n "); return FALSE;  } function Log_write ($message) {$this->smtp_debug ($message);  if ($this->log_file = = "") {return TRUE; } $message = Date ("M D h:i:s"). Get_current_user (). "  [". Getmypid ()."]: ". $message; if (! @file_exists ($this->log_file) | |! ( $fp = @fopen ($this->log_file, "a")) {$this->smtp_debug ("warning:cannot open log file \". $this->log_file. "   \ "\ n");  return FALSE;;  } flock ($FP, LOCK_EX);  Fputs ($fp, $message);  Fclose ($FP); return TRUE;  } function Strip_comment ($address) {$comment = "/\ ([^ ()]*\)/";  while (Preg_match ($comment, $address)) {$address = Preg_replace ($comment, "", $address); } return $address;  } function Get_address ($address) {$address = Preg_replace ("/([\t\r\n]) +/", "", $address);  $address = Preg_replace ("/^.*< (. +) >.*$/", "\1", $address);return $address;  } function Smtp_debug ($message) {if ($this->debug) {echo $message; }}}?>

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<?phpheader ("content-type:text/html; Charset=utf-8 "); Introduce the sending message class require ("smtp.php");//Use 163 mailbox Server $smtpserver = "smtp.163.com";//163 Mailbox Server Port $smtpserverport = 25;// Your 163 server mailbox Account $smtpusermail = "xxx@163.com";//Recipient Mailbox $smtpemailto = "Xxx@qq.com"; Your e-mail account (remove @163.com) $smtpuser = "xxx";//Your 163 mailbox Remove the back 163.com//your mailbox password $smtppass = "xxx"; Your 163 mailbox SMTP authorization code, do not fill in the password!!! Message subject $mailsubject = "Test mail send";//message content $mailbody = "Php+mysql";//Message Format (html/txt), txt as text mail $mailtype = "txt";// A true in this case is that authentication is used, otherwise it is not used. $SMTP = new SMTP ($smtpserver, $smtpserverport, True, $smtpuser, $smtppass);// Whether to display debug information sent $smtp->debug = true;//Send mail $smtp->sendmail ($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $ Mailtype);?>

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