Cart & Checkout

All filters related to the shopping flow from cart to checkout.

estimated_total

fluent_cart/cart/estimated_total — Filter cart estimated total

When it runs: This filter is applied when calculating the cart total, allowing you to modify the final total amount.

Parameters:

• $total (int): The cart total in cents
• $data (array): Context data

  $data = [
      'cart' => [
          'id' => 123,
          'subtotal' => 10000,
          'tax' => 1000,
          'discount' => 500
      ]
  ];

Returns:

• $total (int): The modified cart total in cents

Usage:

add_filter('fluent_cart/cart/estimated_total', function($total, $data) {
    $cart = $data['cart'];
    // Add a processing fee
    $processingFee = 200; // $2.00 in cents
    return $total + $processingFee;
}, 10, 2);

checkout_address_fields

fluent_cart/checkout_address_fields — Filter checkout address fields

When it runs: This filter is applied when rendering address fields on the checkout page.

Parameters:

• $fields (array): Array of address field definitions

  $fields = [
      'first_name' => [
          'label' => 'First Name',
          'type' => 'text',
          'required' => true
      ],
      'last_name' => [
          'label' => 'Last Name',
          'type' => 'text',
          'required' => true
      ],
      'email' => [
          'label' => 'Email',
          'type' => 'email',
          'required' => true
      ]
  ];

• $data (array): Additional context data (empty array)

Returns:

• $fields (array): The modified fields array

Usage:

add_filter('fluent_cart/checkout_address_fields', function($fields, $data) {
    // Add a custom address field
    $fields['company'] = [
        'label' => 'Company Name',
        'type' => 'text',
        'required' => false
    ];
    return $fields;
}, 10, 2);

checkout_page_css_classes

fluent_cart/checkout_page_css_classes — Filter checkout page CSS classes

When it runs: This filter is applied when rendering the checkout page to customize CSS classes.

Parameters:

• $classes (array): Array of CSS classes

  $classes = [
      'fluent-cart-checkout',
      'checkout-page'
  ];

• $data (array): Additional context data (empty array)

Returns:

• $classes (array): The modified CSS classes array

Usage:

add_filter('fluent_cart/checkout_page_css_classes', function($classes, $data) {
    // Add custom CSS class
    $classes[] = 'custom-checkout-theme';
    return $classes;
}, 10, 2);

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