php学习笔记(三)之发送邮件01 关于class_smtp.php

ispsh

　　php在发送邮件的时候需要借助一个class_smtp.php文件.
　　文件的代码如下:
　　<?//发送邮件//user:cuiran//email:cuiran2001@163.comset_time_limit(120); class smtp{/* Public Variables */var $smtp_port;var $time_out;var $host_name;var $log_file;var $relay_host;var $debug;var $auth;var $user;var $pass;var $sender;/* Private Variables */var $sock;/* Constractor */function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass,$sender){$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->sender = $sender;$this->host_name = "localhost"; //is used in HELO command $this->log_file = "";$this->logs = ""; //记录跟服务器的交互过程$this->sock = FALSE;}/* Main Function */function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = ""){$sent = TRUE;$mail_from = $this->get_address($this->strip_comment($from));$body = ereg_replace("(^|(/r/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";$header .= "From: ".$from."/r/n";$header .= "Subject: ".$subject."/r/n";$header .= $additional_headers;$header .= "Date: ".date("r")."/r/n";$header .= "X-Mailer: 72e.net (PHP/".phpversion().")/r/n";list($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)));}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 $this->smtp_error("sending HELO command");}#authif($this->auth){if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {return $this->smtp_error("sending AUTH command");}if (!$this->smtp_putcmd("", base64_encode($this->pass))) {return $this->smtp_error("sending AUTH command");}}#//if (!$this->smtp_putcmd("MAIL", "FROM:".$from."")) {if (!$this->smtp_putcmd("MAIL", "FROM:<".$this->sender.">")) {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 = ereg_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 $this->smtp_ok();}function smtp_ok(){$response = str_replace("/r/n", "", fgets($this->sock, 512));//echo "response=".$response."/r/n";$this->smtp_debug($response."/n");//echo "ereg 23 ==".ereg("^[23]", $response)."/n";if (!ereg("^[23]", $response)) {//echo "@@@@@";fputs($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("> ".$cmd."/n");//echo "cmd=".$cmd."/r/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->logs .= $message;$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 (ereg($comment, $address)) {$address = ereg_replace($comment, "", $address);}return $address;}function get_address($address){$address = ereg_replace("([ /t/r/n])+", "", $address);$address = ereg_replace("^.*<(.+)>.*$", "/1", $address);return $address;}function smtp_debug($message){if ($this->debug) {echo $message;}}} // end class?>