获取数组中数值的数值

Question

我需要在生成的字符串中添加某种匹配计数，但是我不知道如何。 有没有一种方法可以增加一些计数到数组？

我有以下代码（在此之前立即执行数据库查询）：

while (!$products->EOF) {
      $purchasedArray[] = array('products_model'=>$products->fields['products_model'],
                                'products_name'=>$products->fields['products_name'],
                                'final_price'=>$products->fields['final_price'],
                                'products_quantity'=>$products->fields['products_quantity']);
      $products->MoveNext();
}
foreach ($purchasedArray as $purchased) {
    $formattedProductname[] = $purchased['products_name'];
    $formattedPrice[] = $purchased['final_price'];
    $formattedUnits[] = $purchased['products_quantity'];
}
$listFinal = implode('|', $formattedProductname);

现在，这一切都很好并且可以正常工作，但是我需要以下输出：

product1=cookie|10.00|2&product2=paper|5.00|17&product3=...

我正在搜索，但似乎找不到有关如何添加该计数的任何信息（product * 1 *，product * 2 * ...）。我应该（可能）看起来像这样：

foreach ($purchasedArray as $purchased) {
    $formattedProducts[] = 'product'.**$position** . '=' . $purchased['products_name'] . '|' . $purchased['final_price'] . '|' . $purchased['products_quantity'];
    $formattedProductname[] = $purchased['products_name'];
    $formattedPrice[] = $purchased['final_price'];
    $formattedUnits[] = $purchased['products_quantity'];
}

$listFinal = implode('&', $formattedProducts);
$listFinalProducts = implode('|', $formattedProductname);

但我绝对不知道如何获得该$position部分...任何帮助将不胜感激。

Answer 1

您可以通过数组的键来做到这一点：

foreach ($purchasedArray as $key=>$purchased) {
    $formattedProducts[] = 'product'. $key . '=' . $purchased['products_name'] . '|' .  $purchased['final_price'] . '|' . $purchased['products_quantity'];
    $formattedProductname[] = $purchased['products_name'];
    $formattedPrice[] = $purchased['final_price'];
    $formattedUnits[] = $purchased['products_quantity'];
}

或者您可以通过添加计数来做到这一点：

    $count = 0;
    foreach ($purchasedArray as $purchased) {
        $count++;
        $formattedProducts[] = 'product'. $count . '=' . $purchased['products_name'] . '|' .  $purchased['final_price'] . '|' . $purchased['products_quantity'];
        $formattedProductname[] = $purchased['products_name'];
        $formattedPrice[] = $purchased['final_price'];
        $formattedUnits[] = $purchased['products_quantity'];
    }

Answer 2

$idx=1;
foreach ($purchasedArray as $purchased) {
    //$formattedProducts[] = 'product'.**$position** . '=' . $purchased['products_name'] . '|' . $purchased['final_price'] . '|' . $purchased['products_quantity'];
    $formattedProducts[] = 'product'.$idx. '=' . $purchased['products_name'] . '|' . $purchased['final_price'] . '|' . $purchased['products_quantity'];
    $idx++;
    $formattedProductname[] = $purchased['products_name'];
    $formattedPrice[] = $purchased['final_price'];
    $formattedUnits[] = $purchased['products_quantity'];
}