(Solved) WP_Query ($ args) -> How to sort letters and numbers within the same array

Looking at the orderby parameter on WP_Query, I don’t see any way to do this. You could (as Peter HvD suggests in his answer) convert your face cards to numbers; but if you want to keep the K|Q|J values, I’d recommend using a usort() callback:

// Assuming that $cartas->posts contains your posts
usort( $carta->posts, 'wpse313015_sort_cartas' );

// ...

function wpse313015_sort_cartas( $a, $b ) {
    $single = true;
    $a_dbt_carta = get_post_meta( $a->ID, 'dbt_carta', $single );
    $b_dbt_carta = get_post_meta( $b->ID, 'dbt_carta', $single );
    // If they're the same, don't worry about sorting.
    if ( $a_dbt_carta == $b_dbt_carta ) {
        return 0;
    }
    // Converts 'K', 'Q', and 'J' to numbers, for easier comparisons.
    $face_card_numbers = array( 'K' => 13, 'Q' => 12, 'J' = 11 );
    if ( in_array( $a_dbt_carta, array_keys( $face_card_numbers ) ) ) {
        $a_dbt_carta = $face_card_numbers[ $a_dbt_carta ];
    }
    if ( in_array( $b_dbt_carta, array_keys( $face_card_numbers ) ) ) {
        $b_dbt_carta = $face_card_numbers[ $b_dbt_carta ];
    }
    if ( $a_dbt_carta > $b_dbt_carta ) {
        return -1;
    }
    return 1;
}

This code is untested. You’ll probably need to make changes to it to fit your particular needs.

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