多维数组Foreach -在不同的表中显示

我目前有以下数组:

Array
(
    [group] => Array
        {
            [5] => group1-title
            [6] => group2-title
        }
    [treatment] => Array
        (
            [5] => Array
                (
                    [16] => Array
                        (
                            [title] => title1
                            [description] => description1
                            [price] => price1
                        )
                    [17] => Array
                        (
                            [title] => title2
                            [description] => description2
                            [price] => price2
                        )
            [6] => Array
                (
                    [21] => Array
                        (
                            [title] => title3
                            [description] => description3
                            [price] => price3
                        )
                }
        }
}

(在现实中，数组数据很大，所以它被裁剪为上面的例子)

我要做的是在数组上运行foreach循环，以使我能够将数据分组在价格表中，按其组(数组键[5]和[6])分开

我想要的最终结果如下:

Group1-Title

---

Title 1 | Desc | Price
Title 2 | Desc | Price

---

Group2-Title

---

Title 3 | Desc | Price

---

到目前为止，我已经尝试了一个带有内部foreach循环的foreach循环。这样可以很好地提取细节和回声，但是我不知道如何在foreach循环期间成功地对数据进行分组。

foreach($your_array['group'] as $iGroupId => $sTitle) {
    echo 'Group: ' . $sTitle . "'n";
    foreach($your_array['treatment'][$iGroupId] as $aGroup) {
        echo implode('|', $aGroup); . "'n"
    }
}

$data = array(); //your data array above
//loop through the groups    
foreach($data['group'] as $key=>$group){
    //echo group header and table start
    echo "<h1>$group</h1>";
    echo "<table border=1>";
    //loop through the data with the corresponding group key
    foreach($data['treatment'][$key] as $row){
        //echo row data
        echo "<tr>";
        echo "<td>{$row['title']}</td>";
        echo "<td>{$row['description']}</td>";
        echo "<td>{$row['price']}</td>";
        echo "</tr>";
    }
    //close table.
    echo "</table>";
}