wordpress make custom role
/* Create Staff Member User Role */
add_role(
'staff_member', // System name of the role.
__( 'Staff Member' ), // Display name of the role.
array(
'read' => true,
'delete_posts' => true,
'delete_published_posts' => true,
'edit_posts' => true,
'publish_posts' => true,
'upload_files' => true,
'edit_pages' => true,
'edit_published_pages' => true,
'publish_pages' => true,
'delete_published_pages' => false, // This user will NOT be able to delete published pages.
)
);