image upload and get attachment id in wordpress

1/* this function for upload image in wordpress and return attchement id code by joshi yogesh (joshiyogesh0333@gmail.com)*/
2function cst_image_upload($img){
3
4    require_once( ABSPATH . 'wp-admin/includes/image.php' );
5    $attes_id = array();
6    $cnt = count($img['name']);
7    for($i=0;$i<$cnt;$i++)
8    {
9            $name = $img['name'][$i];
10            $type = $img['type'][$i];
11            $tmp_name = $img['tmp_name'][$i];
12            $error = $img['error'][$i];
13            $size = $img['size'][$i] ;
14        
15        $upload_data = array(
16            'name'      => $name,
17            'type'      => $type,
18            'tmp_name'  => $tmp_name,
19            'error'     => $error,
20            'size'      => $size
21            );
22        $uploaded_file = wp_handle_upload($upload_data, array('test_form' => false));
23        // print_r($uploaded_file);
24
25        if (isset($uploaded_file['file'])) {
26            $file_loc   =   $uploaded_file['file'];
27            $file_name  =   basename($upload_data['name']);
28            $file_type  =   wp_check_filetype($file_name);
29
30            $attachment = array(
31                'post_mime_type'    => $file_type['type'],
32                'post_title'        => preg_replace('/\.[^.]+$/', '', basename($file_name)),
33                'post_content'      => '',
34                'post_status'       => 'inherit'
35            );
36
37            $attach_id      =   wp_insert_attachment($attachment, $file_loc);
38            $attach_data    =   wp_generate_attachment_metadata($attach_id, $file_loc);
39            wp_update_attachment_metadata($attach_id, $attach_data);
40            array_push($attes_id,$attach_id);
41        }
42    }
43    return $attes_id;
44}