can't determine what this loop is doing...

sneakyimp

can anyone tell me what this accomplishes? i'm not super familiar with each

	// Strip all tags from data ... may p**s some people off, bah, strip_tags is
	// doing the job but can still break HTML output ... have no choice, have
	// to use htmlspecialchars ... be prepared to be moaned at.
	while( list($var, $param) = @each($strip_var_list) )
	{
		if ( !empty($HTTP_POST_VARS[$param]) )
		{
			$$var = trim(htmlspecialchars($HTTP_POST_VARS[$param]));
		}
	}

intenz

What this does, it says in the comment.

However, each returns the current key and value pair from an array and advance the array cursor.

sneakyimp

thanks for nothing.

list() is also confusing to me.

intenz

"thanks for nothing", how rude! :glare:

Bunkermaster

yeah sure now we want to help you...

sneakyimp

i'm sorry guys. i was half-joking, but i shouldn't have put it that way. i owe my life to this site and the help i get here. it was late and i've been working long hours. I had read the comments over and over and overand had some vague inkling of what it was doing, but the comments only seemed to tell half the story.🙁

I kinda half understand what it does i think.

The code is from phpBB. an array of variables was defined in $strip_var_list. I'm guessing the loop is kinda like saying

foreach($strip_var_list as $var=>$param) {
          $$var = trim(htmlspecialchars($HTTP_POST_VARS[$param])); 
}

if $strip_var_list has an assignment

$strip_var_list['email'] = 'email';

then the assignment would be

$email = trim(htmlspecialchars($HTTP_POST_VARS['email']));

is that right? if so, perhaps a better comment would be 'strip special html chars from certain variables and define them in the local script's scope'.

sorry about that. i really do appreciate your help.