How to correctly use PHP to send emails_PHP Tutorial-PHP Tutorial-php.cn

How to correctly use PHP to send emails_PHP Tutorial

WBOY

Release： 2016-07-15 13:31:51

Original

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Application code example of PHP email function:

#echo send_mail($_POST["email"],$tosubject,$_POST["errortext"]);
echo send_mail('someone@126.com','only a test mail for test php mail function','a spam mail');
echo time();
function send_mail($to, $subject = 'No subject', $body) {
$loc_host = "mail .server"; //Sending computer name, feel free to
$smtp_acc = "smp@163.com"; //Smtp authenticated username
$smtp_pass= "pwdpwd"; //Smtp authentication password, generally equivalent to pop3 password
$smtp_host ="smtp.163.com"; //SMTP server address, similar to smtp.tom.com
$from="smp@163.com"; //Sender’s email address, your sending mailbox address
$deliver=$smtp_acc; //Reply to the specified email address
$headers = "Content-Type: text/plain; charset="gb2312"rnContent-Transfer-Encoding: base64";
$lb="rn"; //linebreak
$hdr = explode($lb,$headers); //Parsed hdr
if($body) {$bdy = preg_replace("/^./",". .",explode($lb,$body));}//Parsed Body
$smtp = array(
//1. EHLO, expect to return 220 or 250
array("EHLO ".$loc_host.$lb,"220,250","HELO error: "),
//2. Send Auth Login , expecting to return 334
array("AUTH LOGIN".$lb,"334","AUTH error:"),
/ /3. Send the Base64-encoded username, expecting to return 334
array(base64_encode($smtp_acc).$lb,"334","AUTHENTIFICATION error : "),
//4. Send the Base64-encoded password and expect a return of 235
array(base64_encode($smtp_pass).$lb,"235" ,"AUTHENTIFICATION error : "));
//5. Send Mail From, expecting to return 250
$smtp[] = array ("MAIL FROM: <".$from.">".$lb,"250","MAIL FROM error: ");
//6. Send Rcpt To.Expect to return 250
$smtp[] = array("RCPT TO: <".$to.">".$lb,"250","RCPT TO error: ");
//7. Send DATA, expecting to return 354
$smtp[] = array("DATA".$lb,"354","DATA error: ");
// 8.0. Send From
$smtp[] = array("From: ".$deliver.$lb,"","");
//8.2. Send To
$smtp[] = array("To: ".$to.$lb,"","");
//8.1. Send title
$smtp[] = array("Subject: ".$subject.$lb,"","") ;
//8.3. Send other Header content
foreach($hdr as $h) {$smtp[] = array($ h.$lb,"","");}
//8.4. Send a blank line to end the header sending
$ smtp[] = array($lb,"","");
//8.5. Sending message body
if($ bdy) {foreach($bdy as $b) {$smtp[] = array(base64_encode($b.$lb).$lb,"","");}}
//9. Send "." to indicate the end of the letter and expect to return 250
$smtp[] = array(".".$lb,"250","DATA( end)error: ");
//10. Send Quit, exit, and expect to return 221
$smtp[] = array( "QUIT".$lb,"221","QUIT error: ");
//Open smtp server port
$fp = @fsockopen($smtp_host, 25);
if (!$ fp) echo "<b>Error: b> Cannot conect to ".$smtp_host."<br> ";
while($result = @fgets($fp, 1024)){if(substr($result ,3,1) == " ") { break; }}
$result_str ="";
//Send the command/data in the smtp array
foreach($smtp as $req){
//Send message
@fputs($fp, $req[0 ]);
//If you need to receive information returned by the server, then
if($req[1]){
//Receive information
while($result = @fgets($fp, 1024)) {
if(substr($result,3,1) == " ") { break; }
};
if (!strstr($req[1],substr($result,0,3))){
$result_str.=$req[2].$result."<br>" ;
}
}
}
//Close the connection
@fclose($fp);
return $result_str;
}

I hope the above code example can help everyone fully grasp the use of PHP's email sending function.