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how while loop value prints outside loop

ditditsasa
P: 17
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  1. while (false !== ($sfname = readdir($dh))) {
  2.   if (substr($sfname, 0, 1) == '.') continue;
  3.   if ($sfname == 'CVS'            ) continue;
  4.   $sitedir = "$OE_SITES_BASE/$sfname";
  5.   if (!is_dir($sitedir)               ) continue;
  6.   if (!is_file("$sitedir/sqlconf.php")) continue;
  7.   $siteslist[$sfname] = $sfname;
  8.     }    echo $sfname;//here not prints sfname value
the value not prints outside the loop. please help me
Apr 12 '12 #1
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2 Replies


dlite922
Expert 100+
P: 1,584
You can't print a variable in the scope of the while loop outside it's scope, outside the while loop.

Your code iterates through the while loop and prints the last value that was assigned to $sfname.
Apr 12 '12 #2

100+
P: 1,059
@dilite922 I am confused about the information of while loop scope.
as far I know, while loop, if statement don’t have their own scope.

but about ditditsasa's problem, if the while condition does not satisfy in the first place in your print you won’t get anything.
Apr 13 '12 #3

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