Re: functions and scoping

Why not simply define a set of variables for root dir and the other directories, and use full paths in your includes? $root = "/wwwroot/mydomain/public/"; $homepageroot = "/"; $mydir = "subdir/"; now you can do: include $rootpath.$mydir."inc.php"; and <a href="<?php echo $hompageroot.$mydir."inc.php"; ?>">Link</a> or <a href="<?php echo $mydir."inc.php"; ?>">Link</a> Regards Michael "David Huyck" <b@bombusbee.com> schrieb im Newsbeitrag news:20020522215607.57317.qmail@pb1.pair.com... > I am trying to define a function that is *like* the standard PHP "include()" > function but is slightly different, but I am running into trouble with > varible scoping. The idea is this: > > I want to mimic "include()" in a way such that when I include a file, it can > then include files relative to itself, instead of relative to the root file > in the chain of includes. For example, if I do something like this: > > // we are here: /root/file.php > include("subDir/anotherFile.php"); > > // we are here: /root/subDir/anotherFile.php > include("diffSubDir/diffFile.php"); > > I get a warning saying that "diffSubDir" is not a valid directory, because > it is actually looking for "/root/diffSubDir/diffFile.php" when I mean to > include "/root/subDir/diffSubDir/diffFile.php". > > The first thing I did was this: > $myPath = getcwd()."/"; > chdir($myPath."subDir/"); > include("anotherFile.php"); > chdir($myPath); > > That's fine, but it's kind of kludgey, because I need to be really careful > not to do crush my $rootPath variable if I need to do it again inside my > include... So the next step was to protect the variable by making it local > to a function. Here is what I got: > > function myInclude($fileName) > { > //you are here > $rootPath = getcwd()."/"; > > //find where we need to go > $aryFilePath = split("/", $fileName); > $fileToInclude = array_pop($aryFilePath); > $includePath = join("/", $aryFilePath) . "/"; > > //do the include > chdir($rootPath.$includePath); > include($fileToInclude); > chdir($rootPath); > } > > So that's great! It does almost everything I want it to do, EXCEPT: the > variable scope within the includes is screwy. The file included in this > manner is local to the function, so it does not have inherent access to the > variables set before/after the call to myInclude(). That makes sense > conceptually, but it doesn't solve my problem. Declaring variables as > "global" doesn't really fix it because a) I want to keep this generic, so I > won't always know what variables to call as global, and b) if I call this > function from within an object, I want to keep my variables local to the > class, but not to the function call within the class. If I am in the class, > for example, and I declare a var as global, I just lost my encapsulation. > Yuck. > > What I really want is for this function to work just like the native PHP > "include()" function, where it does its thing without making its own scope. > Is there any way to do such a thing? I tried declaring and calling the > function as &myInclude(), but that didn't do it either. > > Am I out-of-luck, or is there some cool trick I haven't learned yet? > > Thanks, > David Huyck > >