ecshop中zencart系統(tǒng)推薦商品的原理

　１：zencart系統(tǒng)推薦商品

　后臺->商品管理->推薦商品,在列表中選擇商品，選擇推薦的時間段，提交．

　2：zencart系統(tǒng)推薦商品的實現(xiàn)原理

　１：tpl_box_default_left.php中，$box_id是循環(huán)整個產(chǎn)品推薦模塊的一個根本，而column_left.php又是循環(huán)選擇模塊標(biāo)題和模塊內(nèi)容的一個模板．于是通過require(DIR_WS_MODULES . 'sideboxes/' . $column_left_display->fields['layout_box_name']);來實現(xiàn)對tpl_default.php的包含．tpl_default.php中的 $random_featured_product = $db->ExecuteRandomMulti($random_featured_products_query, MAX_RANDOM_SELECT_FEATURED_PRODUCTS);
數(shù)組，把要包含的推薦產(chǎn)品條數(shù)記錄下來。傳遞給tpl_default.php.

　tpl_default.php是zencart中產(chǎn)品推薦的模塊．下面的代碼是對推薦產(chǎn)品的處理．

　$content = "";
  $featured_box_counter = 0;
  while (!$random_featured_product->EOF) {
    $featured_box_counter++;
    $featured_box_price = zen_get_products_display_price($random_featured_product->fields['products_id']);
    $content .= '<div class="sideBoxContent centeredContent">';
    $content .=  '<a href="' . zen_href_link(zen_get_info_page($random_featured_product->fields["products_id"]), 'cPath=' . zen_get_generated_category_path_rev($random_featured_product->fields["master_categories_id"]) . '&products_id=' . $random_featured_product->fields["products_id"]) . '">' . zen_image(DIR_WS_IMAGES . $random_featured_product->fields['products_image'], $random_featured_product->fields['products_name'], SMALL_IMAGE_WIDTH, SMALL_IMAGE_HEIGHT);
    $content .= '<br />' . $random_featured_product->fields['products_name'] . '</a>';
    $content .= '<div>' . $featured_box_price . '</div>';
    $content .= '</div>';
    $random_featured_product->MoveNextRandom();
  }

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