mehdiboroumand

I forgot to use gpt chat!
He solved my problem.
Maybe others will need it, so I will write the solution:

function display_user_completed_order_count( $atts, $content = null ) {
    $args = shortcode_atts( array(), $atts );
    $user_id = get_current_user_id();
    
    $order_count = 0;
    
    $args = array(
        'post_type'      => 'shop_order',
        'post_status'    => 'wc-completed',
        'posts_per_page' => -1,
        'meta_query'     => array(
            array(
                'key'     => '_customer_user',
                'value'   => $user_id,
                'compare' => '=',
            ),
        ),
    );
    
    $orders = get_posts( $args );
    
    if ( ! empty( $orders ) ) {
        $order_count = count( $orders ); 
    }
    
    ob_start();
    
    echo number_format( $order_count );
    
    return ob_get_clean();
}

add_shortcode( 'user_completed_order_count', 'display_user_completed_order_count' );

Thank you so much. That’s exactly what you said. My problem is solved. Thank you for your great support.