phpmailer，电子邮件行为之谜

Question

I have been in PHP/email 'hell' - I got close, and can't seem to get to the 'finish line'....

Om using phpmailer to send support requests in a clients site. my process looks like this: FORM -> PROCESS (generate feedback message AND cc message to support) -> mail to sender -> mail to support -> redirect to thank you page.

the issue is two fold: 1) the emails go thru as expected IF i have debuging turned on, but I get the debug AND no redirect 2) if I turn off debug - the email DOES NOT go out AND I get a blank page - with NO redirect

* addendum * The emails just came thru - so it's ONLY a redirect problem... either with or without debug, My meta refresh does not get sent - maybe there's a better way????

PHP FORM PROCESSOR

...
// send two emails
    $_emailTo = $email; // the email of the person requesting
    $_emailBody = $text_body; // the stock response with things filled in
    include ( 'email.php' );

    $_emailTo = $notifyEmail; // the support email address
    $_emailBody = $pretext.$text_body; // pretext added as meta data for support w/ same txt sent to user
    include ( 'email.php' );

// relocate
    echo '<META HTTP-EQUIV="Refresh" Content="0; URL=success.php" >';
    exit;

PHP MAILER (email.php)

<?php
    require 'phpmailer/class.phpmailer.php';

//Create a new PHPMailer instance
$mail = new PHPMailer();

//Tell PHPMailer to use SMTP
$mail->IsSMTP();

//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = 0;

//Set the hostname of the mail server
$mail->Host = "mail.validmailserver.com";

//Set the SMTP port number - likely to be 25, 465 or 587
$mail->Port = 26;

//Whether to use SMTP authentication
$mail->SMTPAuth = true;

//Username to use for SMTP authentication
$mail->Username = "validusername";

//Password to use for SMTP authentication
$mail->Password = "pass1234";

//Set who the message is to be sent from
$mail->SetFrom('[e-mail]', 'no-reply @ this domain');

//Set an alternative reply-to address
//$mail->AddReplyTo('[e-mail]','Support');

//Set who the message is to be sent to
$mail->AddAddress( $_emailTo );
$mail->Subject = $_emailSubject;
$mail->MsgHTML( $_emailBody );

$_emailError = false;

//Send the message, check for errors
if( !$mail -> Send() ) {
    $_emailError = true;
    echo "Mailer Error: " . $mail->ErrorInfo;
} 
?>

help - please

Answer 1

Your problem may be that some output has already been sent to the browser before the redirect is attempted. You can't normally do a redirect in that situation. If that's the case you may be able to use output buffering as in the following example:

ob_start();
//statements that output data to the browser
print "some text";
if (!headers_sent()) {
    header('Location: /success.php');
    exit; 
}
ob_end_flush();

This can also be turned on by default in the php.ini file with the output buffering directive, in which case you won't need the ob_start() and ob_end_flush() statements. My php.ini file has this:

output_buffering = 4096