0

不确定这是否可能，但这里有......我需要获取indexes包含在一个数组中的所有object

前锋

<?php foreach($all_orders as $key => $val) : ?>

<?php 
    $cart = unserialize($val->cart);  
    $keys = array_keys($cart); 
    $x = count($keys); 
    $index = $keys[$x]; 
    $cart = $cart[$index]; 
?>

<?php $val->field_name; ?>

<?php endforeach; ?>

var_dump

array (size=3)
  0 => 
    object(stdClass)[22]
      public 'tracking_num' => string '1Z12345E1512345676' (length=18)
      public 'order_status' => string '1' (length=1)
      public 'cust_id' => string '10' (length=2)
      public 'cart' => string 'a:1:{s:32:"d9082c0e32bb353796d3bf8ebba34f71";a:9:{s:5:"rowid";s:32:"d9082c0e32bb353796d3bf8ebba34f71";s:2:"id";s:9:"101_44068";s:3:"qty";s:1:"1";s:5:"price";s:5:"104.5";s:4:"name";s:13:"Business Card";s:5:"image";s:18:"business-cards.gif";s:4:"ship";a:3:{s:6:"Ground";d:9.730000000000000426325641456060111522674560546875;s:11:"2nd Day Air";d:18.53999999999999914734871708787977695465087890625;s:9:"Overnight";d:26.269999999999999573674358543939888477325439453125;}s:7:"options";a:2:{s:17:"Print Description";s:16'... (length=784)
      public 'shipping_type' => string 'Overnight' (length=9)
      public 'shipping_cost' => string '26.27' (length=5)
      public 'order_sub_total' => string '104.50' (length=6)
      public 'order_total' => string '130.77' (length=6)
      public 'id' => string '30' (length=2)
      public 'timestamp' => string '2012-10-13 00:52:30' (length=19)
  1 => 
    object(stdClass)[23]
      public 'tracking_num' => string '' (length=0)
      public 'order_status' => string '0' (length=1)
      public 'cust_id' => string '10' (length=2)
      public 'cart' => string 'a:2:{s:32:"d7f14d223f7873bf93a3c0670b01609b";a:9:{s:5:"rowid";s:32:"d7f14d223f7873bf93a3c0670b01609b";s:2:"id";s:9:"101_96866";s:3:"qty";s:1:"1";s:5:"price";s:5:"84.25";s:4:"name";s:13:"Business Card";s:5:"image";s:18:"business-cards.gif";s:4:"ship";a:3:{s:6:"Ground";d:9.730000000000000426325641456060111522674560546875;s:11:"2nd Day Air";d:18.53999999999999914734871708787977695465087890625;s:9:"Overnight";d:26.269999999999999573674358543939888477325439453125;}s:7:"options";a:2:{s:17:"Print Description";s:16'... (length=1582)
      public 'shipping_type' => string 'Ground' (length=6)
      public 'shipping_cost' => string '37.62' (length=5)
      public 'order_sub_total' => string '622.25' (length=6)
      public 'order_total' => string '659.87' (length=6)
      public 'id' => string '31' (length=2)
      public 'timestamp' => string '2012-10-13 00:53:20' (length=19)
  2 => 
    object(stdClass)[24]
      public 'tracking_num' => string '' (length=0)
      public 'order_status' => string '0' (length=1)
      public 'cust_id' => string '10' (length=2)
      public 'cart' => string 'a:4:{s:32:"7670d6182aaad174954c5619079f48a1";a:9:{s:5:"rowid";s:32:"7670d6182aaad174954c5619079f48a1";s:2:"id";s:9:"101_32840";s:3:"qty";s:1:"1";s:5:"price";s:5:"84.25";s:4:"name";s:13:"Business Card";s:5:"image";s:18:"business-cards.gif";s:4:"ship";a:3:{s:6:"Ground";d:9.730000000000000426325641456060111522674560546875;s:11:"2nd Day Air";d:18.53999999999999914734871708787977695465087890625;s:9:"Overnight";d:26.269999999999999573674358543939888477325439453125;}s:7:"options";a:2:{s:17:"Print Description";s:16'... (length=3145)
      public 'shipping_type' => string 'Overnight' (length=9)
      public 'shipping_cost' => string '224.46' (length=6)
      public 'order_sub_total' => string '1,000.75' (length=8)
      public 'order_total' => string '1225.21' (length=7)
      public 'id' => string '32' (length=2)
      public 'timestamp' => string '2012-10-13 01:11:03' (length=19)

这段代码包含在一个foreachvar$cart中包含一个ARRAY带有多个的对象indexes。如果我$x用0循环替换将显示cart数组中的第一个索引。但是有些cart包含超过 1 个索引。

count($keys)正确地回显了cart数组中的索引数。例如，我有 3 辆购物车。

  1. cart1 有1 index
  2. cart2 有2 index
  3. cart3 有4 index

如果我这样做，echo count($keys)我会回来1 2 4

如何将这些值（按顺序）单独传递$x给每个循环的 var？

注意购物车如何可能有超过 1 个索引值

期望输出：

每个都cart包含一个包含多个产品的数组。foreach 必须遍历并显示数组中的每个产品cart基于上面显示的 var_dump，cart数组的预期输出应该在如下表中：

<tr>0</tr> /*cart 1 has 1 index in the array*/
<tr>01</tr> /*cart 2 has 2 index in the array*/
<tr>0123</tr> /*cart 3 has 4 index in the array*/
4

3 回答 3

0

如果我理解你的问题——我不确定我是否理解——你可以foreach在你没有显示的循环中使用一个简单的循环。（或者至少在我写这个答案时它不在问题中 - 也许编辑你的问题以显示它，嗯？）

这个内部foreach循环将循环通过如下值$keys：

foreach ($keys as $this_key) {
    // whatever you want to do with the values of $keys here
    // each value will be available as $this_key
}
于 2012-10-13T05:37:19.947 回答
0

数组索引从 0 开始，因此您应该尝试：

$x = count($keys) -1
$index = $keys[$x]

您所有的索引都保存在 $keys 中，您可以遍历它以获取各自的元素，例如$cart[$keys[0]], $cart[$keys[1]], ...

这将为您提供数组中的最后一个数组键$index。

或者，我建议您使用以下命令遍历数组 $cart 的所有键：

foreach($cart as $key=>$value){
   $cart[$key]; $value //Do whatever you want with the cart with the index $key or its value $value.
}
于 2012-10-13T05:44:12.747 回答
0

您可以尝试如下

您有每个订单可以有多个购物车，每个购物车有多个项目。您希望在每个购物车中显示 # 个项目。

<?php 
    $cart = unserialize($val->cart);  
    $keys = array_keys($cart); // this will give you # of carts into one order
    //if now you want to count # of items into each cart then
    foreach($keys as $val){
      echo count($cart[$val]);
    }

?>
于 2012-10-13T06:19:12.293 回答