Why is_file isn't seeing files?

[phppup]

I thought this made sense, but it wouldn't work until I removed lines that I thought would provide extra validation:

$dir = 'rootFolder';
$directories = scandir($dir);
foreach($directories as $directory){
    if($directory=='.' or $directory=='..' ){
        echo 'dot';
    }else{
    if(is_dir($directory))
echo '<strong>'.$directory .'</strong> <br>';
    $filePath = scandir($directory);
foreach($filePath as $subDir){
if($subDir=='.' or $subDir=='..' ){
        echo 'dot2 <br>';
    }else {
   // if (is_file($subDir)) {
//Only provided  PHP files but NO IMAGES
        echo $subDir . "<br>";
    }  }  // }

            }
    }
} 

I'm just feeling down one level of a director to see what I've get. It seemed like a simple exercise until I tried to list the files.

Obviously, of it's not a directory it MUST be a file, but why did quantifying it as a file not recognize my files as a file??

[mac_gyver]

1 hour ago, phppup said:

if(is_dir($directory))

the above line is missing any {  }, so the only line of code that gets executed for an is_dir() is the - echo '<strong>'.$directory .'</strong> <br>'; all the rest of the lines get executed regardless of what $directory is.

i recommend that you always format your code so that you can see when it is actually doing.

[phppup]

@mac_gyver yes, I had discovered that, but it wasn't the actual fix.

The real issue was that my test for is_file was flawed; it didn't drill down to actually test the specified file.

if (is_file($subDir)) {

//needed to become  
if (is_file($directory.'/'.$subDir)) {

After both adjustments, everything is running better than expected!