move_uploaded_file() not working on wordpress front end - wordpress

Question

I have working code that uploads an image from the front end and sets it as a featured image and custom field photo for a custom post type but I am unable to figure out how to set the upload path.
Essentially if I have an employee I would like to use the custom field last_first to generate a folder path:
"wp-content/uploads/employee_mug/[last_first]/"
which would contain a photo of the employee. I require this as the folder structure is required for another page. The code is in my functions.php file but is simply in an if statement.
I've attempted to use move_uploaded_file with no success.
if (isset($_POST['last_first']) && is_user_logged_in()){
$my_post = array (
'post_type' => 'employee',
'post_status' => 'publish', // can also draft, private or publish
'post_title' => $_POST['last_first'],
);
$postID = wp_insert_post($my_post);
if (!function_exists('wp_generate_attachment_metadata')){
require_once(ABSPATH . "wp-admin" . '/includes/image.php');
require_once(ABSPATH . "wp-admin" . '/includes/file.php');
require_once(ABSPATH . "wp-admin" . '/includes/media.php');
}
if ($_FILES) {
foreach ($_FILES as $file => $array) {
/*
if ($_FILES[$file]['error'] !== UPLOAD_ERR_OK) {
return "upload error : " . $_FILES[$file]['error'];
}
*/
$attach_id = media_handle_upload( $file, $postID );
}
}
if ($attach_id > 0){
//and if you want to set that image as Post then use:
update_post_meta($postID,'_thumbnail_id',$attach_id);
}
//update_field('whatever_field_key_for_venue_field', $_POST['venue'], $postID);
update_field('last_first', $_POST['last_first'], $postID);
update_field('employee_mug', $attach_id, $postID);
update_field('date_of_birth', $_POST['dob'], $postID);
update_field('sex', $_POST['sex'], $postID);
die;}
I would like that when a file is attached the end result be:
"wp-content/uploads/employee_mug/[last_first]/1.jpg"
UPDATE 1.0
if ($_FILES) {
foreach ($_FILES as $file => $array) {
/*
if ($_FILES[$file]['error'] !== UPLOAD_ERR_OK) {
return "upload error : " . $_FILES[$file]['error'];
}
*/
$path = "./wp-content/uploads/mug_shots/";
$path .= $name;
if ( wp_mkdir_p( $path ) ) {
$attach_id = media_handle_upload( $file, $postID );
move_uploaded_file($file, $path);
} else {
wp_mkdir_p( $path );
$attach_id = media_handle_upload( $file, $postID );
move_uploaded_file($file, $path);
}
}
now checks to see if a folder was create and if not it will make one with the employee name but the move_uploaded file is not moving the photo into the generator folder. I simply need to find a way to make the file move to the generated folder at this point, Any help would be greatly appreciated!
UPDATE 2.0
the bellow code moves the file to wp-content/uploads/employee_mug/ but will not move it into the generated folder with the employee is name. I'm very close here I simply need the file moved into the employee is named folder at this point!
$name = $_POST['last_first'];
if ($_FILES) {
foreach ($_FILES as $file => $array) {
/*
if ($_FILES[$file]['error'] !== UPLOAD_ERR_OK) {
return "upload error : " . $_FILES[$file]['error'];
}
*/
//for MKDIR FOR CREATION
$path = "./wp-content/uploads/employee_mug/";
$path .= $name;
//FOR MOVING UPLOADED IMAGE
function my_upload_dir($upload) {
$upload['subdir'] = '/employee_mug/' . $name;
$upload['path'] = $upload['basedir'] . $upload['subdir'];
$upload['url'] = $upload['baseurl'] . $upload['subdir'];
return $upload;
}
if ( wp_mkdir_p( $path ) ) {
if ( ! function_exists( 'wp_handle_upload' ) ) require_once( ABSPATH . 'wp-admin/includes/file.php' );
$uploadedfile = $_FILES['mug_shot'];
$upload_overrides = array( 'subjects_add' => false );
add_filter('upload_dir', 'my_upload_dir');
$attach_id = media_handle_upload( $file, $postID );
remove_filter('upload_dir', 'my_upload_dir');
/*
move_uploaded_file($file, $path);
$attach_id = media_handle_upload( $file, $postID );
*/
} else {
wp_mkdir_p( $path );
if ( ! function_exists( 'wp_handle_upload' ) ) require_once( ABSPATH . 'wp-admin/includes/file.php' );
$uploadedfile = $_FILES['mug_shot'];
$upload_overrides = array( 'subjects_add' => false );
add_filter('upload_dir', 'my_upload_dir');
$attach_id = media_handle_upload( $file, $postID );
remove_filter('upload_dir', 'my_upload_dir');
/*
move_uploaded_file($file, $path);
$attach_id = media_handle_upload( $file, $postID );
*/
}
}
}
if ($attach_id > 0){
//and if you want to set that image as Post then use:
update_post_meta($postID,'_thumbnail_id',$attach_id);
}
////////////////////////////////////////////////////////////////////////////////////////////
//update_field('whatever_field_key_for_venue_field', $_POST['venue'], $postID);
update_field('last_first', $_POST['last_first'], $postID);
update_field('employee_mug', $attach_id, $postID);
UPDATE 3.0 SOLVED ******
function my_upload_dir($upload) {
$upload['subdir'] = '/employee_mug/' . $_POST['last_first'];
$upload['path'] = $upload['basedir'] . $upload['subdir'];
$upload['url'] = $upload['baseurl'] . $upload['subdir'];
return $upload;
}