Checking for file-extensions in PHP with Regular expressions

Question

I\'m reading all the files in a single directory and I want to filter on JPG,JPEG,GIF and PNG.

Both capital and small letters. Those are the only files to be accepte

Answer 1

Is there any reason you don't want to use scandir and pathinfo?

public function scanForFiles($path, array $exts)
{
    $files = scanDir($path);

    $return = array();

    foreach($files as $file)
    {
        if($file != '.' && $file != '..')
        {
            if(in_array(pathinfo($file, PATHINFO_EXTENSION), $exts))) {
                $return[] = $file;   
            }
        }
    }

    return $return;
}

So you could also check if the file is a directory and do a recursive call to scan that directory. I wrote the code in haste so might not be 100% correct.