one REALLY notable advantage is: if you us ob_*() functions, instead of writing HTML pages with php tags inserted, you can write XML pages with PHP tags inserted. then after you're done, you can pass the contents of the output buffer to an XSLT processer like sablotron, THEN outputting an HTML page.
-jerome ----Original Message Follows---- From: [EMAIL PROTECTED] To: [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: RE: [PHP] uh, oh errors? Date: Thu, 16 May 2002 13:43:30 -0400 What are some benefits to using output buffering versus just letting it generate as it goes? -----Original Message----- From: Kevin Stone [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 16, 2002 1:24 PM To: PHP-general Subject: Fw: [PHP] uh, oh errors? Don't feel bad about this. This is something that messes a lot of people up. The browser knows where your headers end and where content begins by adding blank line between the headers and the rest of the page. ALL headers must come before any content is printed to the page. PHP will give you that error if you attempt to write a new header. So in fact your problem is not on Line 13.. but is actually on Line 11. There are at least two ways to avoid this... 1. Don't print content before headers. :) 2. Use output buffering to write the whole page before it is outputed to the browser. Hope this helps, -Keivn ----- Original Message ----- From: "Jas" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, May 16, 2002 11:10 AM Subject: [PHP] uh, oh errors? > Not sure how to resolve this, looked at php.net for the headers available > and this is the error I am recieving: > > Warning: Cannot add header information - headers already sent by (output > started at /path/to/connection/script/db.php:6) in /path/to/login/checking > file/auth_done.php on line 13 > > Here is the code that is in auth_done.php: > > session_start(); > require '/path/to/login/checking file/db.php'; > $db_table = 'auth_users'; > $sql = "SELECT * from $db_table WHERE un = \"$u_name\" AND pw = > password(\"$p_word\")"; > $result = @mysql_query($sql,$dbh) or die("Couldn't execute query"); > $num = mysql_numrows($result); > if ($num !=0) { > session_register('u_name'); > session_register('p_word'); > $msg_success = "Good freakin job poindexter!!"; > } else { > header ("Location: index.php"); // This is line 13 that is my error > generator > } > > This is the code for the db.php script: > <?php > $dbh = mysql_connect('localhost','username','password') or die('Could not > connect to database, please try again later'); > mysql_select_db('db_name') or die('Could not select database, please try > again later'); > ?> > > Any help would be great! I am assuming there is another way to redirect > users besides the header function, just not sure what it is or how to use > it. Thanks in advance, > Jas > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
