Creating a directory listing

[David McGregor <dave@highlanderdesign.com>]

I'm trying to do this for a web site. I need to list the contents of 
each directory on a site to perhaps 4 levels deep (only html files). 
I've almost got a function going where it starts at the top level and 
checks each file to see if IT is a directory and if so chdir() to that 
and list the contents of it until it comes across a directory at that 
level then chdir() again and so on and when done it will have gone 
through all files in the 4 levels. I also have to consider searching 
the files in each directory for a search term (I've got the searching 
part OK). What is the most efficient way to go through a hierarchy of 
directories to list or check each file and subdirectory?

Right now, this is what I have and I think it works, but not sure if 
it's most efficient way:

if ($handle1 = @opendir($basedir)) {
    $dir0 = getcwd();
    while (false !== ($file1 = readdir($handle1))) {
        //ignore files that start with periods (hidden files and parent 
directories)
        if (substr($file1,0,1) != "." && substr($file1,0,2) != "..") {
            if (is_dir($file1)) {
                chdir($file1);
                $dir1 = getcwd();
                if ($handle2 = @opendir($dir1)) {
                    while (false !== ($file2 = readdir($handle2))) {
                        if (substr($file2,0,1) != "." && 
substr($file2,0,2) != "..") {
                            if (is_dir($file2)) {
                                chdir($file2);
                                $dir2 = getcwd();

// and so on as many levels as needed

                            } elseif (ereg("\.htm",$file2)) {
                                echo "$file2<br>";
                            }
                        }
                    }  //end while
                    closedir($handle2);
                    chdir($dir0);
                }  //end opendir
            } elseif (ereg("\.htm",$file1)) {
                echo "$file1<br>";
            }
        }
    }
    closedir($handle1);
    // output the results
}

Thanks for any assistance.

Dave
 


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