require_once( '../wp-admin/includes/image.php' );
// Generate the metadata for the attachment, and update the database record.
$attach_id = wp_insert_attachment( $idImagePostTable, $dirwpattached, $idPost );
$attach_data = wp_generate_attachment_metadata( $attach_id, $dirwpattached );
var_dump( wp_update_attachment_metadata( $attach_id, $attach_data ));
echo "<br><pre>";print_r($attach_id.'-'.$attach_data);echo"</pre>";