PHP: How to list files in a directory without listing subdirectories

It should be like this, I think:

$files = scandir($dir); 
foreach($files as $file)
{
    if(is_file($dir.$file)){
      ....

Just use is_file.

Example:

foreach($files as $file)
{
    if( is_file($file) )
    {
       // Something
    }
}