Q: How to split woocommerce cart page based on product categories Thanks you for your help. I have a very unique requirement for woocommerce cart page. What i want is to split products based on categories. For example: 
Category name 1:
product 1
product 2
product 3
Category name 2:
product 1
product 2
product 3
Assumptions: Each product is assigned a single category, so i want to pull all the categories and display products which is in that category.
I have tried using the following code but it display all the categories. 
Your help will be highly appreciated. 


<?php
/**
 * Cart Page
 *
 * This template can be overridden by copying it to yourtheme/woocommerce/cart/cart.php.
 *
 * HOWEVER, on occasion WooCommerce will need to update template files and you
 * (the theme developer) will need to copy the new files to your theme to
 * maintain compatibility. We try to do this as little as possible, but it does
 * happen. When this occurs the version of the template file will be bumped and
 * the readme will list any important changes.
 *
 * @see     https://docs.woocommerce.com/document/template-structure/
 * @package WooCommerce/Templates
 * @version 3.7.0
 */

defined( 'ABSPATH' ) || exit;

do_action( 'woocommerce_before_cart' ); ?>
<style>
table {
    position: relative;
}
form.woocommerce-cart-form {
    font-size: 0;
}
td.aa {
    width: 100% !important;
    position: absolute;
    border: 0 !IMPORTANT;
    padding: 4px !IMPORTANT;
    font-size: 23px !important;
    background: #28d18b;
    color: #fff;
    text-align: center;
    display: none !Important;
}    
</style>
<form class="woocommerce-cart-form" action="<?php echo esc_url( wc_get_cart_url() ); ?>" method="post">
 <?php do_action( 'woocommerce_before_cart_table' ); ?>

 <table class="shop_table shop_table_responsive cart woocommerce-cart-form__contents" cellspacing="0">
  <thead>
   <tr>
    <th class="product-remove">&nbsp;</th>
    <th class="product-thumbnail">&nbsp;</th>
    <th class="product-name"><?php esc_html_e( 'Product', 'woocommerce' ); ?></th>
    <th class="product-price"><?php esc_html_e( 'Price', 'woocommerce' ); ?></th>
    <th class="product-quantity"><?php esc_html_e( 'Quantity', 'woocommerce' ); ?></th>
    <th class="product-subtotal"><?php esc_html_e( 'Total', 'woocommerce' ); ?></th>
   </tr>
  </thead>
  <tbody>
   <?php do_action( 'woocommerce_before_cart_contents' ); ?>


<?php
  $args = array(
         'taxonomy'     => 'product_cat',
         'orderby'      => 'name',
         'show_count'   => '0',
         'pad_counts'   => '0',
         'hide_empty'   => '0'
  );
 $cats = get_categories( $args );
 
 
 foreach ($cats as $cat) {
      $category_id = $cat->term_id;       
echo "<tr>";
     
echo "<td class='aa'>";

   foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {

 if ( has_term( $category_id, 'product_cat', $cart_item['product_id'] ) ) {
      echo $cat->name ;
    $_product   = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
    $product_id = apply_filters( 'woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key );
        

 
    if ( $_product && $_product->exists() && $cart_item['quantity'] > 0 && apply_filters( 'woocommerce_cart_item_visible', true, $cart_item, $cart_item_key ) ) {
     $product_permalink = apply_filters( 'woocommerce_cart_item_permalink', $_product->is_visible() ? $_product->get_permalink( $cart_item ) : '', $cart_item, $cart_item_key );

     ?>
     <tr class="woocommerce-cart-form__cart-item <?php echo esc_attr( apply_filters( 'woocommerce_cart_item_class', 'cart_item', $cart_item, $cart_item_key ) ); ?>">

      <td class="product-remove">
       <?php
        echo apply_filters( // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
         'woocommerce_cart_item_remove_link',
         sprintf(
          '<a href="%s" class="remove" aria-label="%s" data-product_id="%s" data-product_sku="%s">&times;</a>',
          esc_url( wc_get_cart_remove_url( $cart_item_key ) ),
          esc_html__( 'Remove this item', 'woocommerce' ),
          esc_attr( $product_id ),
          esc_attr( $_product->get_sku() )
         ),
         $cart_item_key
        );
       ?>
      </td>

      <td class="product-thumbnail">
      <?php
      $thumbnail = apply_filters( 'woocommerce_cart_item_thumbnail', $_product->get_image(), $cart_item, $cart_item_key );

      if ( ! $product_permalink ) {
       echo $thumbnail; // PHPCS: XSS ok.
      } else {
       printf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $thumbnail ); // PHPCS: XSS ok.
      }
      ?>
      </td>

      <td class="product-name" data-title="<?php esc_attr_e( 'Product', 'woocommerce' ); ?>">
      <?php
      if ( ! $product_permalink ) {
       echo wp_kses_post( apply_filters( 'woocommerce_cart_item_name', $_product->get_name(), $cart_item, $cart_item_key ) . '&nbsp;' );
      } else {
       echo wp_kses_post( apply_filters( 'woocommerce_cart_item_name', sprintf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $_product->get_name() ), $cart_item, $cart_item_key ) );
      }

      do_action( 'woocommerce_after_cart_item_name', $cart_item, $cart_item_key );

      // Meta data.
      echo wc_get_formatted_cart_item_data( $cart_item ); // PHPCS: XSS ok.

      // Backorder notification.
      if ( $_product->backorders_require_notification() && $_product->is_on_backorder( $cart_item['quantity'] ) ) {
       echo wp_kses_post( apply_filters( 'woocommerce_cart_item_backorder_notification', '<p class="backorder_notification">' . esc_html__( 'Available on backorder', 'woocommerce' ) . '</p>', $product_id ) );
      }
      ?>
      </td>

      <td class="product-price" data-title="<?php esc_attr_e( 'Price', 'woocommerce' ); ?>">
       <?php
        echo apply_filters( 'woocommerce_cart_item_price', WC()->cart->get_product_price( $_product ), $cart_item, $cart_item_key ); // PHPCS: XSS ok.
       ?>
      </td>

      <td class="product-quantity" data-title="<?php esc_attr_e( 'Quantity', 'woocommerce' ); ?>">
      <?php
      if ( $_product->is_sold_individually() ) {
       $product_quantity = sprintf( '1 <input type="hidden" name="cart[%s][qty]" value="1" />', $cart_item_key );
      } else {
       $product_quantity = woocommerce_quantity_input(
        array(
         'input_name'   => "cart[{$cart_item_key}][qty]",
         'input_value'  => $cart_item['quantity'],
         'max_value'    => $_product->get_max_purchase_quantity(),
         'min_value'    => '0',
         'product_name' => $_product->get_name(),
        ),
        $_product,
        false
       );
      }

      echo apply_filters( 'woocommerce_cart_item_quantity', $product_quantity, $cart_item_key, $cart_item ); // PHPCS: XSS ok.
      ?>
      </td>

      <td class="product-subtotal" data-title="<?php esc_attr_e( 'Total', 'woocommerce' ); ?>">
       <?php
        echo apply_filters( 'woocommerce_cart_item_subtotal', WC()->cart->get_product_subtotal( $_product, $cart_item['quantity'] ), $cart_item, $cart_item_key ); // PHPCS: XSS ok.
       ?>
      </td>
     </tr>
     <?php
    }

       }
       
   }
 
    echo "</td>";
     echo "</tr>";

 } 
 
   ?>

   </tbody>
</table>


   
<table class="shop_table shop_table_responsive cart woocommerce-cart-form__contents" cellspacing="0">
<tbody>
   <?php do_action( 'woocommerce_cart_contents' ); ?>

   <tr>
    <td colspan="6" class="actions">

     <?php if ( wc_coupons_enabled() ) { ?>
      <div class="coupon">
       <label for="coupon_code"><?php esc_html_e( 'Coupon:', 'woocommerce' ); ?></label> <input type="text" name="coupon_code" class="input-text" id="coupon_code" value="" placeholder="<?php esc_attr_e( 'Coupon code', 'woocommerce' ); ?>" /> <button type="submit" class="button" name="apply_coupon" value="<?php esc_attr_e( 'Apply coupon', 'woocommerce' ); ?>"><?php esc_attr_e( 'Apply coupon', 'woocommerce' ); ?></button>
       <?php do_action( 'woocommerce_cart_coupon' ); ?>
      </div>
     <?php } ?>

     <button type="submit" class="button" name="update_cart" value="<?php esc_attr_e( 'Update cart', 'woocommerce' ); ?>"><?php esc_html_e( 'Update cart', 'woocommerce' ); ?></button>

     <?php do_action( 'woocommerce_cart_actions' ); ?>

     <?php wp_nonce_field( 'woocommerce-cart', 'woocommerce-cart-nonce' ); ?>
    </td>
   </tr>

   <?php do_action( 'woocommerce_after_cart_contents' ); ?>
  </tbody>
 </table>
 <?php do_action( 'woocommerce_after_cart_table' ); ?>
</form>

<?php do_action( 'woocommerce_before_cart_collaterals' ); ?>

<div class="cart-collaterals">
 <?php
  /**
   * Cart collaterals hook.
   *
   * @hooked woocommerce_cross_sell_display
   * @hooked woocommerce_cart_totals - 10
   */
  do_action( 'woocommerce_cart_collaterals' );
 ?>
</div>

<?php do_action( 'woocommerce_after_cart' ); ?>



A: Override cart.php template first, after then just replace table <tbody></tbody> section with follows -
<tbody>
            <?php do_action( 'woocommerce_before_cart_contents' ); ?>

                        <?php
                        $cat_wisw_pros = array();
                        foreach ( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
                            $product_id = $cart_item['product_id'];
                            $cat_ids = wp_get_post_terms( $product_id, 'product_cat', array( 'fields' => 'ids' ) );
                            foreach ( $cat_ids as $id ) {
                                $cat_wisw_pros[$id][$cart_item_key] = $cart_item;
                            }
                        }
                        ksort( $cat_wisw_pros ); // Cat ID wise sort
                        $grouped_cart_items = array();
                        foreach ( $cat_wisw_pros as $cat_id => $cart_items ) {
                            $term = get_term( $cat_id, 'product_cat' );
                            ?>
                            <tr>
                                <td colspan="6" class=""><strong><?php echo $term->name; ?></strong></td>
                            </tr>
                            <?php 
                            foreach ( $cart_items as $cart_item_key => $cart_item ) {
                                if( !array_key_exists( $cart_item_key, $grouped_cart_items ) ) {
                                    $_product   = apply_filters( 'woocommerce_cart_item_product', $cart_item['data'], $cart_item, $cart_item_key );
                $product_id = apply_filters( 'woocommerce_cart_item_product_id', $cart_item['product_id'], $cart_item, $cart_item_key );

                if ( $_product && $_product->exists() && $cart_item['quantity'] > 0 && apply_filters( 'woocommerce_cart_item_visible', true, $cart_item, $cart_item_key ) ) {
                    $product_permalink = apply_filters( 'woocommerce_cart_item_permalink', $_product->is_visible() ? $_product->get_permalink( $cart_item ) : '', $cart_item, $cart_item_key );
                    ?>
                    <tr class="woocommerce-cart-form__cart-item <?php echo esc_attr( apply_filters( 'woocommerce_cart_item_class', 'cart_item', $cart_item, $cart_item_key ) ); ?>">

                        <td class="product-remove">
                            <?php
                                echo apply_filters( // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
                                    'woocommerce_cart_item_remove_link',
                                    sprintf(
                                        '<a href="%s" class="remove" aria-label="%s" data-product_id="%s" data-product_sku="%s">&times;</a>',
                                        esc_url( wc_get_cart_remove_url( $cart_item_key ) ),
                                        esc_html__( 'Remove this item', 'woocommerce' ),
                                        esc_attr( $product_id ),
                                        esc_attr( $_product->get_sku() )
                                    ),
                                    $cart_item_key
                                );
                            ?>
                        </td>

                        <td class="product-thumbnail">
                        <?php
                        $thumbnail = apply_filters( 'woocommerce_cart_item_thumbnail', $_product->get_image(), $cart_item, $cart_item_key );

                        if ( ! $product_permalink ) {
                            echo $thumbnail; // PHPCS: XSS ok.
                        } else {
                            printf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $thumbnail ); // PHPCS: XSS ok.
                        }
                        ?>
                        </td>

                        <td class="product-name" data-title="<?php esc_attr_e( 'Product', 'woocommerce' ); ?>">
                        <?php
                        if ( ! $product_permalink ) {
                            echo wp_kses_post( apply_filters( 'woocommerce_cart_item_name', $_product->get_name(), $cart_item, $cart_item_key ) . '&nbsp;' );
                        } else {
                            echo wp_kses_post( apply_filters( 'woocommerce_cart_item_name', sprintf( '<a href="%s">%s</a>', esc_url( $product_permalink ), $_product->get_name() ), $cart_item, $cart_item_key ) );
                        }

                        do_action( 'woocommerce_after_cart_item_name', $cart_item, $cart_item_key );

                        // Meta data.
                        echo wc_get_formatted_cart_item_data( $cart_item ); // PHPCS: XSS ok.

                        // Backorder notification.
                        if ( $_product->backorders_require_notification() && $_product->is_on_backorder( $cart_item['quantity'] ) ) {
                            echo wp_kses_post( apply_filters( 'woocommerce_cart_item_backorder_notification', '<p class="backorder_notification">' . esc_html__( 'Available on backorder', 'woocommerce' ) . '</p>', $product_id ) );
                        }
                        ?>
                        </td>

                        <td class="product-price" data-title="<?php esc_attr_e( 'Price', 'woocommerce' ); ?>">
                            <?php
                                echo apply_filters( 'woocommerce_cart_item_price', WC()->cart->get_product_price( $_product ), $cart_item, $cart_item_key ); // PHPCS: XSS ok.
                            ?>
                        </td>

                        <td class="product-quantity" data-title="<?php esc_attr_e( 'Quantity', 'woocommerce' ); ?>">
                        <?php
                        if ( $_product->is_sold_individually() ) {
                            $product_quantity = sprintf( '1 <input type="hidden" name="cart[%s][qty]" value="1" />', $cart_item_key );
                        } else {
                            $product_quantity = woocommerce_quantity_input(
                                array(
                                    'input_name'   => "cart[{$cart_item_key}][qty]",
                                    'input_value'  => $cart_item['quantity'],
                                    'max_value'    => $_product->get_max_purchase_quantity(),
                                    'min_value'    => '0',
                                    'product_name' => $_product->get_name(),
                                ),
                                $_product,
                                false
                            );
                        }

                        echo apply_filters( 'woocommerce_cart_item_quantity', $product_quantity, $cart_item_key, $cart_item ); // PHPCS: XSS ok.
                        ?>
                        </td>

                        <td class="product-subtotal" data-title="<?php esc_attr_e( 'Total', 'woocommerce' ); ?>">
                            <?php
                                echo apply_filters( 'woocommerce_cart_item_subtotal', WC()->cart->get_product_subtotal( $_product, $cart_item['quantity'] ), $cart_item, $cart_item_key ); // PHPCS: XSS ok.
                            ?>
                        </td>
                    </tr>
                    <?php
                }

                                }
                            }
                        }
                        ?>

            <?php do_action( 'woocommerce_cart_contents' ); ?>

            <tr>
                <td colspan="6" class="actions">

                    <?php if ( wc_coupons_enabled() ) { ?>
                        <div class="coupon">
                            <label for="coupon_code"><?php esc_html_e( 'Coupon:', 'woocommerce' ); ?></label> <input type="text" name="coupon_code" class="input-text" id="coupon_code" value="" placeholder="<?php esc_attr_e( 'Coupon code', 'woocommerce' ); ?>" /> <button type="submit" class="button" name="apply_coupon" value="<?php esc_attr_e( 'Apply coupon', 'woocommerce' ); ?>"><?php esc_attr_e( 'Apply coupon', 'woocommerce' ); ?></button>
                            <?php do_action( 'woocommerce_cart_coupon' ); ?>
                        </div>
                    <?php } ?>

                    <button type="submit" class="button" name="update_cart" value="<?php esc_attr_e( 'Update cart', 'woocommerce' ); ?>"><?php esc_html_e( 'Update cart', 'woocommerce' ); ?></button>

                    <?php do_action( 'woocommerce_cart_actions' ); ?>

                    <?php wp_nonce_field( 'woocommerce-cart', 'woocommerce-cart-nonce' ); ?>
                </td>
            </tr>

            <?php do_action( 'woocommerce_after_cart_contents' ); ?>
        </tbody>

