如何遍歷此數組？

Question

好吧，我對使用PHP數組還比較陌生，我擁有Follow數組，我需要遍歷該數組2280和2307是標識符。

我發現很難提出一個收集所有數據的foreach（）。

Array
(
[2280] => Array
    (
        [0] => http://deals.com.au//uploads/deal_image/2706.jpg
        [1] => Yuan's Massage and Beauty
        [2] => Get Hair Free in CBD! Only $99 for SIX MONTHS worth of the latest in IPL Permanent Hair Reduction. Choose which area you want treated! Valued at $900 from Yuan's Massage and Beauty in the Heart of Melbourne's CBD. Limited vouchers available
        [3] => 99
        [4] => 900
        [5] => 801
        [6] => http://deals.com.au/1827
    )

[2307] => Array
    (
        [0] => http://deals.com.au//uploads/deal_image/2683.jpg
        [1] => Name Necklace Australia
        [2] => Style yourself like SJP! Only $29 for a STERLING Silver Name Necklace plus get FREE delivery! Valued at $75 with NameNecklace.com.au
        [3] => 29
        [4] => 75
        [5] => 46
        [6] => http://deals.com.au/Melbourne
    )
)

Answer 1

您的數組片段

$array = array( // foreach ($array as $k=>$subarray)
'2280' /* this is your $k */ => 
    array( /* and this is your $subarray */
        'http://deals.com.au//uploads/deal_image/2706.jpg',

現在，您獲得了所需的數據（由於數組的值是數組，因此必須使用嵌套的foreach ）：

foreach ($array as $k=>$subarray) {
    foreach ($subarray as $data) {
        echo $data;//of subarray
    }
}

UPDATE

OP對我的回答的評論問題：

如果我想選擇選擇性而不是進行大量數據轉儲，該怎么辦。 如果回顯$ data，如何訪問特定行？

好吧，在大多數情況下，您應該在數組中關聯鍵和數據（在PHP中我們稱其為關聯數組）。

范例1：

$hex_colors = array('FF0000', '00FF00' '0000FF');

值不與對應的鍵關聯。 PHP將為數組元素本身分配0,1,2 ...鍵。 在這種情況下，您將使用由PHP 1鍵自動分配的綠色的十六進制值： echo $hex_colors[1]; // 00FF00 echo $hex_colors[1]; // 00FF00 ，當然您應該肯定知道。 通常，當您具有嚴格的數據結構（例如array(red, green, bluee) ，可以使用此方法，但是在大多數情況下，最好使用以下方法：

范例2：

$hex_colors = array('red'=>'FF0000', 'green'=>'00FF00' 'blue'=>'0000FF');

十六進制顏色表示與適當的鍵關聯echo $hex_colors['green']; // 00FF00 echo $hex_colors['green']; // 00FF00

如果您的數組是：

$array = array(
    '2280' => array(
        'image_url' => 'http://deals.com.au//uploads/deal_image/2706.jpg',
        'product_name' => 'Yuan\'s Massage and Beauty',
        'description' => 'Get Hair Free in CBD! Only $99 for SIX MONTHS worth of the latest in IPL Permanent Hair Reduction. Choose which area you want treated! Valued at $900 from Yuan's Massage and Beauty in the Heart of Melbourne's CBD. Limited vouchers available',
        'price' => 99,
        'weight_brutto' => 900,
        'weight_netto' => 801,
        'dealer_store' => 'http://deals.com.au/1827',
        ...

您將可以使用“人類可讀”鍵來訪問數據：

foreach ($array as $id=>$product) {
    echo '<a href="http://myshop.com/?product_id='.$id.'">Buy '.$product['name'].'</a>';
    echo '<img class="product_thumbnail" src="'.$product['image_url'].'" />';
    echo 'Description: '.$product['description'];
    echo 'The price is '.number_format($product['price']);
    ...
}

它非常適合從數據庫中讀取行，例如：

while ($data = mysql_fetch_array($query_result_link, MYSQL_ASSOC)) { 
// MYSQL_ASSOC flag is not necessary
// PHP will use this flag by default for mysql_fetch_array function
// keys of $data will be correspondent columns names returned by mysql query
    echo $data['id'];
    echo $data['title'];
    ...
}

繼續學習PHP ，當您更方便地關聯鍵和值時，會發現更多情況。

Answer 2

foreach ($arr1 as $key1 => $value1) {

    //$key1==2280; $value1 is the array
    foreach ($value1 as $key2 => $value2) {
        //$key2==0;$value2="http://deals.com.au//uploads/deal_image/2706.jpg"
    }

}