Create shortcode form of Billing from my-account/edit-address/billing/

					<?php
/*
Plugin Name: WP Plugin
*/

add_shortcode('billing_form', 'wpturbo_billing_form_shortcode');

function wpturbo_billing_form_shortcode() {
    ob_start();
    
    // Retrieve the user's billing information
    $user_id = get_current_user_id();
    $billing_address = get_user_meta($user_id, 'billing_address', true);
    $billing_city = get_user_meta($user_id, 'billing_city', true);
    $billing_state = get_user_meta($user_id, 'billing_state', true);
    $billing_zip = get_user_meta($user_id, 'billing_zip', true);
    
    // Handle form submission
    if ($_SERVER['REQUEST_METHOD'] === 'POST') {
        // Sanitize and save the form data
        $updated_billing_address = sanitize_text_field($_POST['billing_address']);
        $updated_billing_city = sanitize_text_field($_POST['billing_city']);
        $updated_billing_state = sanitize_text_field($_POST['billing_state']);
        $updated_billing_zip = sanitize_text_field($_POST['billing_zip']);
        
        // Update user meta data
        update_user_meta($user_id, 'billing_address', $updated_billing_address);
        update_user_meta($user_id, 'billing_city', $updated_billing_city);
        update_user_meta($user_id, 'billing_state', $updated_billing_state);
        update_user_meta($user_id, 'billing_zip', $updated_billing_zip);
        
        // Redirect to prevent form resubmission
        wp_redirect($_SERVER['REQUEST_URI']);
        exit;
    }
    
    // Display the billing form
    ?>
    <form method="POST">
        <label for="billing_address">Billing Address:</label>
        <input type="text" name="billing_address" id="billing_address" value="<?php echo esc_attr($billing_address); ?>" required>
        
        <label for="billing_city">City:</label>
        <input type="text" name="billing_city" id="billing_city" value="<?php echo esc_attr($billing_city); ?>" required>
        
        <label for="billing_state">State:</label>
        <input type="text" name="billing_state" id="billing_state" value="<?php echo esc_attr($billing_state); ?>" required>
        
        <label for="billing_zip">ZIP Code:</label>
        <input type="text" name="billing_zip" id="billing_zip" value="<?php echo esc_attr($billing_zip); ?>" required>
        
        <input type="submit" value="Save">
    </form>
    <?php
    
    return ob_get_clean();
}