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PHP101: redirect to another page

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DaveC426913

DaveC426913

Programmer
Jul 28, 2003
274
CA
PHP 101:
What is the appropriate way to directly go to another page? (Yes, I really do mean just that.)

I am currently using this JavaScript kludge:

?>
<script>location="nextpage.html"</script>
<?


I read something about "header", but it did not work for me.
 
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Yes, I have tried this. I get this error:

Warning: Cannot modify header information - headers already sent by (output started at D:\hshome\davec426\davesbrain.ca\aura\test.php:7) in D:\hshome\davec426\davesbrain.ca\aura\test.php on line 45
 
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Sooooo...

What that's telling me is that I should make sur I'm doing all my redirecting (and thus all my PHP code) inside the <head> tag. I can't have it inside the <body> tag.

Correct? (I mean, I know there are other ways to deal with this, but the above way will solve the problem, right?)
 
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No.

As the FAQ explains in section 1.4, all headers have to be sent before any content is sent. The order of operations in an HTTP response is "send headers", "send a blank line", "send content". Your script is trying to "send headers", "send a blank line", "send some content", "send another header".

Your script must set headers before it does anything else.



Want the best answers? Ask the best questions! TANSTAAFL!
 
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How can I "set headers before I do anything else" if there's stuff I need to do on this page before I redirect?

1] Parse querystring.
2a] If querystring contains 'Command=Save' then save all form data from querystring, then redirect to homepage.
2b] If querystring contains 'Command=Continue' then save all form data, then redirect to page 2 using a form to pass some variables.


Thus:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<html>
<head>
<title>Write Answers</title>
<?php
$section = $_POST['section'];
$UID = $_POST['UID'];
$SaveExit = $_POST['SaveContinue'];

#message data, open database connection
#...
$sql = "INSERT INTO `Aura_User_Answer` (UserID, QuestionID,Answer) VALUES (".$UID.",".$QuID.",".$Ans.")";
$result = mysql_query($sql);
$result = mysql_query($sql);
mysql_close($dbcnx);
# close
if ($SaveExit=="Save"){
# Save/Exit flag was set to Save
header("Location: index.html");
}
else{
# Save/Exit flag was set to Continue
?>
</head>
</body>
<!-- hereafter, build a form so you submit form data for POSTing -->



So, regardless of what happens later in the page, it chokes on the 'header' line.
 
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I'm sorry, I should have been more clear.

Set the header before you send any more data to the client. Before any print statements. Before any bare HTML outside of <?php...?> tags.



Want the best answers? Ask the best questions! TANSTAAFL!
 
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