后端开发|php教程
Socket, php 发邮件, php socket教程, WebSocket
后端开发-php教程
php socket通过smtp发送邮件（可带附件）
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//define("SOL", "\n");define("EOL", "\r\n");define("SMTP_HOST", "");//SMTP服务器define("SMTP_PORT", "25");//SMTP服务器端口define("SMTP_USER", "");//SMTP服务器的用户帐号define("SMTP_PASS", "");//SMTP服务器的用户密码$from = "";//SMTP服务器的用户邮箱$to = "";//发送给谁 可用逗号隔开多个邮箱$cc = "";$bcc = "";$subject="这是一个由PHP发送的带附件的邮件";//邮件主题 很多客户端会有乱码，所以转一下码$body = "这个是一个带附件的邮件发送程序看到没，这里显示了HTM标签哦;请点开链接 ".date(Y-m-d H:i:s);//邮件内容$smtp = new smtp(SMTP_HOST,SMTP_PORT,SMTP_USER,SMTP_PASS, true);//这里面的一个true是表示使用身份验证,否则不使用身份验证.$smtp->addAttachment("mail.zip");$smtp->sendmail($to, $from, $subject, $body, $cc, $bcc);class smtp {/* Public Variables */public $attachments = array();/* Private Variables */private $smtp_host;private $smtp_port;private $time_out;private $host_name;private $auth;private $user;private $pass;private $sock;/* Constractor */public function smtp($smtp_host = null, $smtp_port = null, $user = null, $pass = null, $auth = true) {$this->smtp_host = (!empty($smtp_host)) ? $smtp_host : SMTP_HOST;$this->smtp_port = (!empty($smtp_port)) ? $smtp_port : SMTP_PORT;$this->user = (!empty($user)) ? $user : SMTP_PORT;$this->pass = (!empty($pass)) ? $pass : SMTP_PORT;$this->auth = $auth;$this->time_out = 15;#$this->host_name = "localhost";$this->sock = FALSE;}/* Main Function */public function sendmail($to, $from, $subject = "", $body = "", $cc = "", $bcc = "") {$bndp = md5(uniqid("")) . rand(1000, 9999);$bnd = md5(uniqid("")) . rand(1000, 9999);list ($msec, $sec) = explode(" ", microtime());$mail_from = $this->strip_line_breaks($from);$mail_to = explode(",", $to);$body = preg_replace("/(^|(\r\n))(\\.)/", "", $body);if ($cc != "") $mail_to = array_merge($mail_to, explode(",", $cc));if ($bcc != "") $mail_to = array_merge($mail_to, explode(",", $bcc));$headers = "MIME-Version:1.0" . EOL;$headers .= "To: " . $to . EOL;if ($cc != "") {$headers .= "Cc: " . $cc . EOL;}$headers .= "From: $from" . EOL;$headers .= "Subject: " . $subject . EOL;$headers .= "Date: " . date("r") . EOL;$headers .= "X-Mailer: Webmail ver 1.0 (PHP Version/" . phpversion() . ")" . EOL;$headers .= "Message-ID: " . EOL;if (count($this->attachments) > 0) {$headers .= "Content-Type: multipart/mixed;" . EOL . chr(9) . " boundary=\"" . $bndp . "\"" . EOL . EOL;$headers .= --.$bndp . EOL;$headers .= Content-Type : multipart/alternative; boundary=" . $bnd . \" . EOL . EOL;$headers .= -- . $bnd . EOL;$headers .= Content-Type: text/plain; charset=utf-8 . EOL;$headers .= "Content-Transfer-Encoding: 8bit" . EOL . EOL;$headers .= $body . EOL;$headers .= -- . $bnd . EOL;$headers .= Content-type: text/html; charset=utf-8 . EOL;$headers .= "Content-Transfer-Encoding: 8bit" . EOL . EOL;$headers .= $body . EOL;$headers .= -- . $bnd . -- . EOL;foreach ($this->attachments as $att) {$headers .= "--" . $bndp . EOL . $att;}$headers .= -- . $bndp . -- . EOL;$this->clear_attachments();} else {$headers .= Content-Type : multipart/alternative;boundary=".$bnd.\" . EOL . EOL;$headers .= --.$bnd . EOL;$headers .= Content-Type: text/plain; charset=utf-8 . EOL;$headers .= "Content-Transfer-Encoding: 8bit" . EOL . EOL;$headers .= $body . EOL;$headers .= --.$bnd . EOL;$headers .= Content-type: text/html; charset=utf-8 . EOL;$headers .= "Content-Transfer-Encoding: 8bit" . EOL . EOL;$headers .= $body . EOL;$headers .= --.$bnd.-- . EOL;}$sent = TRUE;foreach ($mail_to as $rcpt_to) {$rcpt_to = $this->strip_line_breaks($rcpt_to);if (!$this->smtp_sockopen($rcpt_to)) {$this->log_write("Error: Cannot send email to " . $rcpt_to);$sent = FALSE;continue;}if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $headers, $body)) {$this->log_write("E-mail has been sent to ");} else {$this->log_write("Error: Cannot send email to ");$sent = FALSE;}fclose($this->sock);}$this->log_write("{$mail_to} send over;");return $sent;}public function addAttachment($file, $dispo = "attachment") {$file_data = (file_exists($file)) ? file_get_contents($file) : "";if ($file_data != "") {$filename = basename($file);$ext = pathinfo($filename, PATHINFO_EXTENSION);$chunks = chunk_split(base64_encode($file_data));$parts = "Content-Type: application/$ext; name=\"" . $filename . "\"" . EOL;$parts .= "Content-Transfer-Encoding: base64" . EOL;$parts .= "Content-Disposition: " . $dispo . "; filename=\"" . $filename . "\"" . EOL . EOL;$parts .= $chunks . EOL . EOL;$this->attachments[] = $parts;}}private function clear_attachments() {unset($this->attachments);$this->attachments = array();}/* Private Functions */private function smtp_send($helo, $from, $to, $header, $body = "") {if (!$this->smtp_putcmd("HELO", $helo)) {//$this->log_write("Error: Error occurred while sending HELO command.");return FALSE;}#authif ($this->auth) {if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {//$this->log_write("Error: Error occurred while sending HELO command.");return FALSE;}if (!$this->smtp_putcmd("", base64_encode($this->pass))) {//$this->log_write("Error: Error occurred while sending HELO command.");return FALSE;}}if (!$this->smtp_putcmd("MAIL", "FROM:")) {//$this->log_write("Error: Error occurred while sending MAIL FROM command.");return FALSE;}if (!$this->smtp_putcmd("RCPT", "TO:")) {//$this->log_write("Error: Error occurred while sending RCPT TO command.");return FALSE;}if (!$this->smtp_putcmd("DATA")) {//$this->log_write("Error: Error occurred while sending DATA command.");return FALSE;}if (!$this->smtp_message($header, $body)) {//$this->log_write("Error: Error occurred while sending message.");return FALSE;}if (!$this->smtp_eom()) {//$this->log_write("Error: Error occurred while sending . [EOM].");return FALSE;}if (!$this->smtp_putcmd("QUIT")) {//$this->log_write("Error: Error occurred while sending QUIT command.");return FALSE;}return TRUE;}private function smtp_sockopen($address) {if ($this->smtp_host == "") {return $this->smtp_sockopen_mx($address);} else {return $this->smtp_sockopen_relay();}}private function smtp_sockopen_relay() {$this->log_write("Trying to Connect " . $this->smtp_host . ":" . $this->smtp_port . "...");$this->sock = @fsockopen($this->smtp_host, $this->smtp_port, $errno, $errstr, $this->time_out);if (!($this->sock && $this->smtp_ok())) {$this->log_write("Error: connenct error" . $errstr . " (" . $errno . ")");return FALSE;}$this->log_write("Connected Ok");return TRUE;}private function smtp_sockopen_mx($address) {$domain = preg_replace("/^.+@([^@]+)$/", "\1", $address);if (!@getmxrr($domain, $MXHOSTS)) {$this->log_write("Error: Cannot resolve MX \"" . $domain . "\"");return FALSE;}foreach ($MXHOSTS as $host) {$this->log_write("Trying to " . $host . ":" . $this->smtp_port);$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);if (!($this->sock && $this->smtp_ok())) {$this->log_write("Connect Error ," . $errstr . " (" . $errno . ")");continue;}$this->log_write("Connected to mx host " . $host);return TRUE;}$this->log_write("Error: Cannot connect to any mx hosts (" . implode(", ", $MXHOSTS) . ")");return FALSE;}private function smtp_message($header, $body) {fputs($this->sock, $header . "\r\n" . $body);return TRUE;}private function smtp_eom() {fputs($this->sock, "\r\n.\r\n");return $this->smtp_ok();}private function smtp_ok() {$response = str_replace("\r\n", "", fgets($this->sock, 512));if (!preg_match("/^[23]/", $response)) {fputs($this->sock, "QUIT\r\n");fgets($this->sock, 512);$this->log_write("Error: Remote host returned \"" . $response . "\"");return FALSE;}return TRUE;}private function smtp_putcmd($cmd, $arg = "") {if ($arg != "") $cmd = ($cmd == "") ? $arg : ($cmd . " " . $arg);fputs($this->sock, $cmd . "\r\n");return $this->smtp_ok();}private function strip_line_breaks($address) {$address = preg_replace("/([\t\r\n])+/", "", $address);$address = preg_replace("/^.*.*$/", "", $address);return $address;}public function log_write($message) {$message = date("M d H:i:s ") . get_current_user() . "[" . getmypid() . "]: " . $message;file_put_contents(dirname(__FILE__) . /mail.log, $message . PHP_EOL, FILE_APPEND | LOCK_EX);}}
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