function my_rename ( $dirname )

{

$ext_arr = array( 'jpeg' , 'jpg' , 'gif' );

$dir = opendir( $dirname );

$count = 1 ;

while (( $file = readdir( $dir )) !== false ) {

if ( is_file ( $dirname . '/' . $file )) {

$info = pathinfo ( $dirname . '/' . $file );

if ( in_array ( strtolower( $info [ 'extension' ]), $ext_arr )) {

rename ( $dirname . '/' . $file , $dirname . '/' . str_pad ( $count

$count ++ ;

}

} elseif ( is_dir ( $dirname . '/' . $file ) && $file != '.' && $file != '

}

closedir ( $dir );

}