main.php

foreach( $files as $key => $filename ) {
  if ( ( basename( $filename ) == '..' )
    || ( basename( $filename ) == '.' )
  ){
    continue;
  }

  if ( substr( $filename, -4 ) == '.php' && ! is_dir( $filename ) ) {
    $php[$filename] = file_get_contents( $filename );
    $php[$filename] = tc_strip_comments( $php[$filename] );
  }
  else if ( substr( $filename, -4 ) == '.css' && ! is_dir( $filename ) ) {
    $css[$filename] = file_get_contents( $filename );
  }
  else {
    $other[$filename] = ( ! is_dir($filename) ) ? file_get_contents( $filename ) : '';
  }
}