Variables and Overridden functions?

[random1]

I've written the following code:

 

$mode = 'development'; // 'Development' or 'Public'

// Writes a buffer to a file
/**
* ob_file_callback()
* Writes the generated CSS to a file.
* @param mixed $buffer
* @return void
*/
function ob_file_callback($buffer)
{
// stylesheet-public.css is the output generated file
$ob_file = fopen('stylesheet-' . $mode . '.css','w');

fwrite($ob_file, $buffer);
}

$buffer = 'test';
ob_start('ob_file_callback');

 

$mode is always empty when I run this code.

 

Is it an issue because ob_file_callback is an overridden function?

[creata.physics]

or it could be that $mode= NULL?

I don't see anywhere in your code where your are defining $mode.

if you put $mode = 'public';

i'm sure it would work, if the file exists that is.

[trq]

Variables created outside of functions do not exist within functions. That's the point of functions, to create stand alone code.

 

If you want to use $mode within your function you will need to pass it in as an argument.

 

(And please, no one mention the globals keyword, globals break encapsulation)

[random1]

Thanks, that's what I thought. I'll much around with it and wrestle it to the ground.