filter html attributes

gistfile1.txt

$attributes = array(
  'id' => 'section-' . cv_get_section(),
  'class' => $classes . ' carousel text-center',
  'data-ratio' => get_sub_field( 'ratio' ),
  'data-mobile-ratio' => get_sub_field( 'ratio_mobile' )
);

function cv_get_attrs( $attributes = array() ) {
  $attributes = array_filter($attributes);
  foreach( $attributes as $key => $value ) {
    echo sanitize_key( $key ) . '="' . esc_attr( $value ) . '"';
  }
}