in reply to Premature end of script headers issue

Difficult to say from the code-snippet you gave. It could have multiple causes.

In my experience it is most of the time related to an error being generated before the HTML-headers were completed.

Looking through the web-server error log might help. Adding "warningsToBrowser" could do no harm either. Making sure that you print the headers as soon as possible (CGI.pm header function) and disabling output caching is sometimes a solution.

CountZero

"If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law

  • Comment on Re: Premature end of script headers issue

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Re^2: Premature end of script headers issue
by Anonymous Monk on Jan 10, 2005 at 21:07 UTC
    I tried to hack the code a little bit from the original and added test prints to see exactly what's wrong. With the following code, it prints tests 1-3 but test 4 never gets printed. So that, I assume, is the main issue with whatever is going wrong.

    It does appear to be a database issue but I'm not very good with them, so can anyone give me an idea of what could possibly be wrong at this point?

    Thanks for your help!

    if (param()) { print "Content-type: text/html\n\n"; use CGI::Carp qw(fatalsToBrowser); $username = (param('form_user')); $userpass = (param('form_pass')); $userpass = md5_hex($userpass); #check the database print "test<br>"; my $dbh = DBI->connect("DBI:mysql:$edt_dbase", $mysql_user, $m +ysql_pass) or print DBI->errstr; my $sth = $dbh->prepare("SELECT * FROM $users_table WHERE user +name = '$username' AND user_password = '$userpass'"); $sth->execute; print "test2<br>"; if ($sth->rows < 1) { print "Content-type: text/html\n\n"; print "Login information incorrect."; $dbh->disconnect; print "<script>window.location = 'login.cgi';</script>\n"; exit; } else { print "test3<br>"; while ($data = $sth->fetchrow_hashref) { print "test4<br>"; $u_id = $$data{"user_id"}; my $auth_user = new CGI::Cookie(-name => + 'user_id', -value => + $u_id); my $auth_pass = new CGI::Cookie(-name => + 'user_pass', -value => + $userpass); #$cookieset = $auth_user . ";" . $auth_pass; print "Set-Cookie: $auth_user\n"; print "Set-Cookie: $auth_pass\n"; print "Content-type: text/html\n\n"; print "Welcome " . $username . ", you have successfull +y logged in.\n"; print "$u_id = UID"; print "<script>window.location = 'index.cgi';</script> +\n"; } } $dbh->disconnect; }
      Add an or die $sth->errstr to the fetchrow_hashref to see what went wrong with the call to the Database.

      CountZero

      "If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law

        Hey, now we have an error!!
        fetch() without execute() at login.cgi line 98.
        I still don't know what it means but the real question is why this could have worked yesterday and NOW it has this problem (whatever it is). It worked, then it stopped working for a day and no one knew what happened. Then it worked for a few days and now it's back to the same problem (I assume it's the same problem).

        What is the error asking for now?

        Thanks very much for your help.