如何自动发送邮件？
php自带mail方法，不过只能在linux下直接使用，windows下要配置smtp服务器，有点麻烦。
可以用一些现成的类来实现，比如很有名的phpmailer，功能很强大，代码也多，这里使用个相对简单的。
<?php 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; /* Private Variables */ var $sock; /* Constractor */ function smtp($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 = 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"; $header .= "Subject: ".$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) { $domain = ereg_replace("^.+@([^@]+)$", "\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)); $this->smtp_debug($response."\n"); if (!ereg("^[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 (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; } } } ?>
smtp.php
这是已经封装好的类，使用方式如下：
<?php // 引入发送邮件类 require("smtp.php"); // 使用qq邮箱服务器 $smtpserver = "smtp.qq.com"; // qq邮箱服务器端口 $smtpserverport = 25; // 你的qq服务器邮箱账号 $smtpusermail = "xxxxxxx@qq.com"; // 收件人邮箱 $smtpemailto = "bigbigsunrise@foxmail.com"; // 你的邮箱账号(去掉@qq.com) SMTP服务器的用户帐号 $smtpuser = "xxxxxxx"; // 你的邮箱密码 SMTP服务器的用户密码 $smtppass = "xxxxxxx"; // 邮件主题 $mailsubject = "测试邮件发送"; // 邮件内容 $mailbody = 'test'; // 邮件格式（HTML/TXT,TXT为文本邮件 $mailtype = "TXT"; // 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. $smtp = new smtp($smtpserver, $smtpserverport, true, $smtpuser, $smtppass); // 是否显示发送的调试信息 $smtp->debug = TRUE; //发送邮件 $smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype); ?>
index.php
将index.php里的一些参数配置好，然后在浏览器打开index.php，就能自动发送邮件了。
如何批量发送邮件？
- 用户脚本
可以直接写个运行在index.php上的用户脚本，定时刷新。
- ajax
写个index.html页面，里面发送ajax请求。
$.ajax():
for(var i = 0; i < 3; i++) { $.ajax({ type: 'POST', url: 'http://localhost/index.php', // dataType: '', async: true, // 异步，一起发送 如果false 则一个一个来 data: {content:'test'}, success: function(msg) { // alert(msg); } });}
$.post():
for(var i = 0; i < 3; i++) { $.post( 'http://localhost/index.php', { 'content': 'test' }, function(data, status) { // console.log(data); } );}
如果index.php里要用post或者get发送的参数（键值对），可以用$_POST[‘content’]或者$_GET[‘content’]实现。
这里有个很奇怪的地方，如果用post方法，要实现多次发送，必须要带key/value的键值对，而内容则无要求；而如果要用get方法，不仅要带key/value键值对，而且每次需带不同的，如下:
var a = ['test1', 'test2', 'test3', 'test4', 'test5'];for(var i = 0; i < 3; i++) { $.get( 'http://localhost/index.php', { // 'content': 'test' // 不行 'content': a[i] }, function(data, status) { // console.log(data); } );}
我觉得应该是我对get和post区别不了解的原因。
ps：原来我想直接在index.php里写个for循环，不知道为何不行。
get和post
demo：
ajax部分：
$.get( 'http://127.0.0.1/ajax/index.php', function(data, status) { console.log(data); });
php部分：
<?php function randomFloat() { return mt_rand() / mt_getrandmax(); } echo randomFloat();?>
