PHP foreach循环为结果添加数值查询

我正在尝试为返回的每个结果生成一个数字序列，如1、2、3、4等。我已经搜索过了，但还没有找到答案，所以我希望有人能在这里帮助我。下面是代码

输出应该如下所示

<input type="hidden" name="item_number_1" id="item_number_293" size="3" style="width: 60px;" class="validate[required]"  value="293" />
<input type="hidden" name="item_name_1" id="item_name_293" style="width: 320px;" class="validate[required]" value="Fish"  />    
<input type="hidden" name="quantity_1" id="quantity_293" style="width: 60px;" class="validate[required,custom[number]]" value="100" />
<input type="hidden" name="amount_1" id="amount_293" style="width: 60px;" class="validate[required,custom[number]]"  value="$1,850.00"  />

<input type="hidden" name="item_number_2" id="item_number_314" size="3" style="width: 60px;" class="validate[required]"  value="314" />
<input type="hidden" name="item_name_2" id="item_name_314" style="width: 320px;" class="validate[required]" value="Dogs"  />    
<input type="hidden" name="quantity_2" id="quantity_314" style="width: 60px;" class="validate[required,custom[number]]" value="1" />
<input type="hidden" name="amount_2" id="amount_314" style="width: 60px;" class="validate[required,custom[number]]"  value="$1.00"  />

<input type="hidden" name="item_number_3" id="item_number_315" size="3" style="width: 60px;" class="validate[required]"  value="315" />
<input type="hidden" name="item_name_3" id="item_name_315" style="width: 320px;" class="validate[required]" value="Cats"  />    
<input type="hidden" name="quantity_3" id="quantity_315" style="width: 60px;" class="validate[required,custom[number]]" value="5" />

---

任何帮助都将不胜感激。提前感谢。

将您的计数器置于foreach循环之外

将在每次循环时返回1

$counter = 0;
foreach ($results as $result) {

然后

---

您的计数器将始终为：1

$counter = 0 + 1;

您可以执行以下操作：

if ($results) {
$i = 0;
    foreach ($results as $result) {
        $username = userDeets($result['user_id']);
        $product =  getProductDeets($result['productid']);
        $getuseremail = $product['user_id'];
        $productowneremail = userDeets($getuseremail);

        $titlefix = str_replace(' ', '-', $product['title']);
        $titlefix = strtolower($titlefix);
        $titlefix = preg_replace("/[^a-z0-9_-\s]+/i", "", $titlefix);
        $cartqty = $result['qty'];
        $productsubtotal = $result['qty'] * $product['price'];
        $qtydiff = $cartqty - $product['qty'];
        $qtyrequested = $result['qty'];

        $i++;           

        $counter = $i;
        ?>
            <input type="hidden" name="item_number_<?php echo $counter; ?>" id="item_number_<?php echo $product['id']; ?>" size="3" style="width: 60px;" class="validate[required]"  value="<?php echo $product['id']; ?>" />
            <input type="hidden" name="item_name_<?php echo $counter; ?>" id="item_name_<?php echo $product['id']; ?>" style="width: 320px;" class="validate[required]" value="<?php echo $product['title']; ?>"  />    
            <input type="hidden" name="quantity_<?php echo $counter; ?>" id="quantity_<?php echo $product['id']; ?>" style="width: 60px;" class="validate[required,custom[number]]" value="<?php echo $result['qty']; ?>" />
            <input type="hidden" name="amount_<?php echo $counter; ?>" id="amount_<?php echo $product['id']; ?>" style="width: 60px;" class="validate[required,custom[number]]"  value="<?php echo "$".number_format($productsubtotal, 2, '.', ','); ?>"  />
<?php } } } 

使用变量i作为计数器

$counter++;

$counter = 0 + 1;

if ($results) {
$i = 0;
    foreach ($results as $result) {
        $username = userDeets($result['user_id']);
        $product =  getProductDeets($result['productid']);
        $getuseremail = $product['user_id'];
        $productowneremail = userDeets($getuseremail);

        $titlefix = str_replace(' ', '-', $product['title']);
        $titlefix = strtolower($titlefix);
        $titlefix = preg_replace("/[^a-z0-9_-\s]+/i", "", $titlefix);
        $cartqty = $result['qty'];
        $productsubtotal = $result['qty'] * $product['price'];
        $qtydiff = $cartqty - $product['qty'];
        $qtyrequested = $result['qty'];

        $i++;           

        $counter = $i;
        ?>
            <input type="hidden" name="item_number_<?php echo $counter; ?>" id="item_number_<?php echo $product['id']; ?>" size="3" style="width: 60px;" class="validate[required]"  value="<?php echo $product['id']; ?>" />
            <input type="hidden" name="item_name_<?php echo $counter; ?>" id="item_name_<?php echo $product['id']; ?>" style="width: 320px;" class="validate[required]" value="<?php echo $product['title']; ?>"  />    
            <input type="hidden" name="quantity_<?php echo $counter; ?>" id="quantity_<?php echo $product['id']; ?>" style="width: 60px;" class="validate[required,custom[number]]" value="<?php echo $result['qty']; ?>" />
            <input type="hidden" name="amount_<?php echo $counter; ?>" id="amount_<?php echo $product['id']; ?>" style="width: 60px;" class="validate[required,custom[number]]"  value="<?php echo "$".number_format($productsubtotal, 2, '.', ','); ?>"  />
<?php } } }