buffer with ob_start - problem!

[__berfuzz]

I'm trying to buffer some HTML-code and write it to a file.

ob_start();
makeMenu();  //makemenu is a function that returns a string.
echo "Test";  //echoes Test, I thought it only would be buffered, not echoed..?
$content = ob_get_contents();
file_put_contents($file, $content);  //writes an empty file on directory. directory is (777)
ob_end_flush  (); //nothing.
echo "Content:$content"; // echoes Content:Test

I cant work it out. What am I doing wrong..?

[NogDog]

"Test" is probably being echoed when you do the ob_end_flush(). If you don't want it to echo, then use ob_end_clean(), instead. As far as writing to the file, it could be a permissions problem. You might want to make sure all errors are reported to help debug:

<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);
// . . . rest of script . . .
?>

[__berfuzz]

Ok. I get this error_report:

Notice: Undefined variable: list in /customers/mysite.com/mysite.com/httpd.www/functions.php on line 111

list is the string I what to write in the file. The error report, I'm not sure of what it means..? I've got a function that returns a string called list.

[NogDog]

All I can tell from the error message is that at line 111 of functions.php it references a variable named "$list" which is not defined within the scope of the code at that point. Inasmuch as the file is named "functions.php", my guess would be that at the point you are within a user-defined function definition but are trying to access a variable that is defined outside of that function. Thus it may need to be passed to that function as one of its arguments, perhaps by reference if you want the function to modify it. But this is all guesswork without the actual code for reference.

[__berfuzz]

This is the function makeMenu that I what to write to the file.

function makeMenu($parent=0)
{
	$getPages = mysql_query("SELECT ID, name, link FROM menu WHERE parent='".$parent."' UNION SELECT ID, name, link FROM prod WHERE parent='".$parent."' AND aktiv = 1 ") or exit(mysql_error());

$list = "Start of string";
	if (mysql_num_rows($getPages) > 0)
	{
		while ($res = mysql_fetch_assoc($getPages))
           {
//make $list
$list .= "chunk";
$list .= "more_chunks";
             }
	}
	return $list;
}

Now when I checked I noticed that the string Test was written to the file.

[NogDog]

Not as bad as I thought. 🙂 It's because the first line where you assign "chunk" to $list, you are using the ".=" append operator, so it's throwing the notice because $list is not yet otherwise defined, so you are appending to nothing, so to speak. If you change that line to use "=" instead of ".=", there will be no more notice. (It's OK on the next line, because at that point $list will then be defined.) This is not a fatal error, rather it's calling your attention to it because it might be a typo or other error, though it's allowed and will work OK.

[__berfuzz]

I did some edit in my last post. I've got a line before the code where the sting is looped. $list = "Start of string"; The error I get is pointing to the return $list; line

[__berfuzz]

I moved the making of the sting, with makeMenu, outside the ob-section. Now it's seems to be working.

Thanx!