PHP implements the Mail sending method (based on the Simple Mail sending class)

This article mainly introduces the PHP method for sending mails. This function is implemented based on the Simple Mail class. A simple mail sending class is provided, and the specific usage is described. For more information, see the example in this article. We will share this with you for your reference. The details are as follows:

Email sending class

<? Php/* Mail sending class * function: Use the smtp server to send mail */class smtp {/* global variable */var $ smtp_port; var $ time_out; var $ host_name; var $ log_file; var $ relay_host; var $ debug; var $ auth; var $ user; var $ pass; var $ sock; /* constructor */function smtp ($ relay_host = "", $ smtp_port = 25, $ auth = false, $ log_file = "", $ 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 = $ log_file; // the log file $ this-> sock = FALSE;} function mail_encode ($ str) {// return '=? UTF-8? B? '. Base64_encode (mb_convert_encoding ($ str, "GBK", "UTF-8 ")).'? = '; Return "=? UTF-8? B? ". Base64_encode ($ str )."? = ";}/* Main function, send mail */function sendmail ($ flag, $ boundary, $ 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 ") {if ($ flag = 2) {$ header. = "Content-Type: multipart/mixe D; boundary = $ boundary \ r \ n ";} else {$ header. = "Content-Type: text/html; charset = \" UTF-8 \ "\ r \ n" ;}}$ header. = ":". $. "\ r \ n"; if ($ cc! = "") {$ Header. = "Cc :". $ cc. "\ r \ n" ;}$ header. = "From: $ from <". $ from. "> \ r \ n"; $ subject = self: mail_encode ($ subject); $ 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: <". dat E ("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 ". $ 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 function */function smtp_send ($ helo, $ from, $ to, $ header, $ body = "") {if (! $ This-> smtp_putcmd ("HELO", $ helo) {return $ this-> smtp_error ("sending HELO command");} 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: <". $. ">") {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
 
  
   
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[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 ". $ 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} quot;, "\ 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 ". $ 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_me Ssage ($ 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 = '[()] 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} quot;, "\ 1", $ address); return $ address;} function smtp_debug ($ message) {if ($ this-> debug) {echo $ message ;}}?>
    
   
  
 

Send mail by calling the Mail sending class

<? Php // file full path name, file name function send_smtp_mail ($ file, $ fileName) {require ("smtp_mail.php"); date_default_timezone_set ('Asia/Shanghai '); $ subject = date ("Y-m-d "). "Mail title"; // mail Title $ content = "Mail content! "; // Email content // $ file ="/a/B/c.txt "; // attachment // $ fileName =" email_log.log "; // attachment name $ smtpserver = "server ip"; // SMTP server $ smtpserverport = 25; // SMTP server port $ bcc = ""; // sub-recipient // $ smtpuser = ""; // User account of the SMTP server // $ smtppass = ""; // SMTP server user password $ smtpmailfrom = "aaa@bbb.com"; // SMTP server user email, email sender $ smtpemailto = "mailbox 1, mailbox 2, mailbox 3 "; // email recipient $ cc = ""; // cc $ mailsubject = $ subject; // email subject $ mailtype = "HTML"; // email format (HTML/TXT). TXT is a text email $ additional_headers = ""; $ smtplogfile = ""; // the log file used to send the email, if not, the demarcation line $ boundary = uniqid (""); $ headers = "Content-type: multipart/mixed; boundary = $ boundary \ r \ n "; // attachment type $ mimeType = "application/unknown"; // open the file $ fp = fopen ($ file, "r "); // read the entire file into a variable $ read = fread ($ fp, filesize ($ file )); // we use base64 to encode it $ read = base64_encode ($ read); // cut the long string into small pieces consisting of 76 characters in each line $ read = Chunk_split ($ read); fclose ($ fp); // close the file/* email sending code */$ flag = 1; // Determine the file header 1 or 2 if ($ fileName = "") {// no attachment $ body = $ content ;} else {// has an attachment $ flag = 2; if ($ mailtype = "HTML") {$ body = "-- $ boundary \ r \ n "; // This Must Be \ r \ n $ body. = "Content-Type: text/html \ r \ n"; // This Must Be \ r \ n $ body. = "$ content \ r \ n"; $ body. = "-- $ boundary \ r \ n"; $ body. = "Content-type: $ mimeType; name = $ fileName \ r \ n"; $ body. = "Content-disposition: attachment; filename = $ fileName \ r \ n"; $ body. = "Content-Transfer-Encoding: BASE64 \ r \ n"; $ body. = "$ read \ r \ n"; $ body. = "-- $ boundary -- \ r \ n";} else {$ body = "-- $ boundary \ r \ n"; $ body. = "Content-type: text/plain; charset = ISO-8859-1 \ r \ n"; $ body. = "Content-transfer-encoding: 8bit \ r \ n"; $ body. = "$ content \ r \ n"; $ body. = "-- $ boundary \ r \ n"; $ body. = "Content-type: $ mimeType; name = $ fileName \ r \ n"; $ body. = "Content-disposition: attachment; filename = $ fileName \ r \ n"; $ body. = "Content-transfer-encoding: base64 \ r \ n"; $ body. = "$ read \ r \ n"; $ body. = "-- $ boundary -- \ r \ n" ;}}$ mailbody = $ body; // email content // Here, true indicates identity authentication, otherwise, authentication is not used. $ smtp = new smtp ($ smtpserver, $ smtpserverport, false, $ smtplogfile); // $ smtp-> debug = TRUE; // whether to display sending Send debugging information if ($ smtp-> sendmail ($ flag, $ boundary, $ smtpemailto, $ smtpmailfrom, $ mailsubject, $ mailbody, $ mailtype, $ cc, $ bcc, $ additional_headers) {echo ("sent successfully") ;}else {echo ("failed to send") ;}}?>

I hope this article will help you with php programming.