小编Wan*_*Van的帖子

我创建了 Facebook Pixel，连接良好。当我运行调试工具时，它会选择示例项目并列出它们，但是一旦我尝试将目录连接到像素，它就会显示像素尚未准备好。下面是代码：

<?php

    $current_url = base64_encode($url="http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);

    $results = $mysqli->query("SELECT products.id,products.image,products.name,products.description, product_variant.discounted_price, product_variant.price  FROM products LEFT JOIN product_variant ON products.id = product_variant.product_id where subcategory_id = 41 ORDER BY id ASC LIMIT 12");
    if ($results) {     
        //fetch results set as object and output HTML
        while($obj = $results->fetch_object()) {
            $a = $obj->price;
            $b = $obj->discounted_price;
            $epsilon = 0;

            if(!$b == $epsilon) {
                $price =  number_format($b,0);
            } else {
              $price = number_format($a,0);
            }

            //Microdata Tags        
            echo '<div itemscope itemtype="http://schema.org/Product">
                  <meta itemprop="brand" content="'.$obj->made_in.'">
                  <meta …