PHP 和 SQL - 连接表和显示

【问题标题】：PHP and SQL - Join tables and displayPHP 和 SQL - 连接表和显示
【发布时间】：2022-06-13 22:55:22
【问题描述】：

我正在尝试显示两个表中的数据。我能够组合数据，显示它们，但无法打破它们以特定方式显示。下面是它的样子。

这是我的输出，后面是我的代码。我想将类别显示为标题以及与之配套的产品，而不是担心布局，只担心逻辑。

<?php

    $getCategories = "select id AS categoryList, category AS catGor from categories ORDER BY catGor";
    $resCategories = mysqli_query($con,$getCategories);


    $information = "select products.product AS product, products.price AS price, products.category_id AS category_id, categories.id AS idCat, categories.category AS category from products,categories ORDER BY products.product";
    $getInformation = mysqli_query($con,$information);

    if($resCategories->num_rows != 0)
    {
        while($row = $resCategories->fetch_assoc())
        {
            $catList = $row['categoryList'];
            $catGor = $row['catGor'];

            for($i = 0; $i < $catList; $i+=3)
            {
                echo "<h2>$catGor</h2>";
                echo "Product - Price"."<br/>";

                 if(($getInformation->num_rows != 0))
                 {                  
                     while($rows = $getInformation->fetch_assoc())
                     {
                         $product = $rows['product'];
                         $price = $rows['price'];
                         $categoryid = $rows['category_id'];
                         $idCat = $rows['idCat'];
                         $category = $rows['category'];

                        if((($idCat) == ($categoryid)) && (($categoryid) == ($catList)))
                        {
                            echo "$product ------ R$price"."</br>";
                        }
                    }
                }
            }
        }
    }
    

?>

【问题讨论】：

• 把你的输出放到<table>作为它的表格数据

标签： php sql