/** * Email SMTP (support php7) ** Modified by: Reson 2017/06 * UPDATE: * 1, change ereg to preg_match; Change ereg_replace to preg_replace. * 2, change the var to public/private. * * More: http://www.daixiaorui.com * * /
class Smtp {
	/* Public Variables */
	public $smtp_port;
	public $time_out;
	public $host_name;
	public $log_file;
	public $relay_host;
	public $debug;
	public $auth;
	public $user;
	public $pass;
	/* Private Variables */
	private $sock;
	/* Constractor */
	function __construct($relay_host = "".$smtp_port = 25.$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_headers = "") {
		$mail_from = $this->get_address($this->strip_comment($from));
		$body = preg_replace("/(^|(\r\n))(\.) /"."Three \ 1. \".$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-mail has 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 $this->smtp_error("sending HELO command"); }}if (!$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->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;
		}

		/ / focus study with PHP, http://www.daixiaorui.com welcome you to visit
		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->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->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 $message; }}}Copy the code
function send_mail($email=' '.$title=' '.$body=' '){
	$smtpserver = C('SMTP') ['SERVER']; / / SMTP server
	$smtpserverport = C('SMTP') ['PORT']; //SMTP server port
	$smtpusermail = C('SMTP') ['USER']; // Email address of the SMTP server
	$smtpuser = C('SMTP') ['USER']; //SMTP server user account (or fill in [email protected], some mailboxes need to be complete)
	$smtppass = C('SMTP') ['PASS']; // Password of the SMTP server
	$mailtype = "HTML"; // Email format (HTML/TXT). TXT is a text email
	/ / * * * * * * * * * * * * * * * * * * * * * * * * configuration information * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	$smtp = new \Common\Lib\Smtp($smtpserver.$smtpserverport.true.$smtpuser.$smtppass); // One of the true values here means authentication is used, otherwise no authentication is used.
	$smtp->debug = false; // Whether to display the sent debugging information
	$res = $smtp->sendmail($email.$smtpusermail.$title.$body.$mailtype);
	return($res);
}
Copy the code