Alright, I've come across something that I'm having trouble with. I'm -attempting- to create a "Source Code Viewer". Now I googled one, and found it, yet I'm having some trouble making sense of it.

PHP Code:

function getDirList ($dirName) {
$d = dir($dirName);
while($entry = $d->read()) {
if ($entry != "." && $entry != "..") {
if (is_dir($dirName."/".$entry)) {
getDirList($dirName."/".$entry);
} else {
if (
    (ereg('\.php$', $entry))
    && 
    (!ereg('index\.php$', $entry))
){    
echo "<a href=./?filename=".$dirName."/".$entry.">".$dirName."/".$entry."</a><br>\n";
} 


If you wouldn't mind, i want to ensure that I'm understanding the various portions of this script. For the first line: "function getDirList ($dirName) {" That would typically, in english, be: "Get Directory List called 'dirName'"

Following that, the second line pertains to setting $d to the directory name. However, I don't understand the third line. I know the "while" function, but the $entry = $d->read()) { I dont understand. Any clarification would be appreciated.

The while statement runs continuously through $dir reading more and more until it cannot. For each iteration, $entry is that bit that it has just read.

Ok; I'm getting started on it, perhaps you could give me some assistance with it:

"Source.php"

PHP Code:

<?

getFiles();
showSource();
showEdit();
showLog();
?>

From there I attempt to gather the needed files that I would need:

PHP Code:

function getFiles()
{
   //get list of all the files for use in the other routines

global $dirPtr, $theFiles;
chdir(".");
$dirPtr = openDir(".");
$currentFile = readDir($dirPtr);
while ($currentFile !== false)
{
   $theFiles = $currentFile;
   $currentFile = readDir($dirPtr);
}  //End While

}  // End Getting Files 


Is this correct thus far? The Challenge is as follows:

"Create a source code viewers. Given the filename, the program should read in the file and convery each instance of < into &lt;. Save this new file to another name. this allows you to show your source code to others."

I've attempted asking others, however many can't really assist. And this as far as I've gotten. Any help?

after reading the task here are some pieces of code :

function get_file_contents($filename){
  $handle = fopen($filename, "rb");
  $contents = htmlspecialchars(fread($handle, filesize($filename)));
  fclose($handle);
}

function list_files($dir){
if (is_dir($dir)) {
   if ($dh = opendir($dir)) {
       while (($file = readdir($dh)) !== false) {
          if ($file!='.' && $file!='..') {
            $files[]= $dir . $file;
          } // de la if ...
       }
       closedir($dh);
   }
}

if (is_array($files)) {return $files; } else {return false;}

}// de la functie ..