WordPress的解析陣列中的PHP

Question

我如何在PHP解析此：

a:8:{s:3:"key";s:19:"field_501743d4baa78";s:5:"label";s:8:"Category";s:4:"name";s:8:"category";s:4:"type";s:8:"checkbox";s:12:"instructions";s:0:"";s:8:"required";s:1:"1";s:7:"choices";a:17:{s:4:"Arts";s:4:"Arts";s:8:"Business";s:8:"Business";s:14:"Communications";s:14:"Communications";s:16:"Criminal Justice";s:16:"Criminal Justice";s:13:"Culinary Arts";s:13:"Culinary Arts";s:9:"Education";s:9:"Education";s:11:"Engineering";s:11:"Engineering";s:11:"Health Care";s:11:"Health Care";s:22:"Information Technology";s:22:"Information Technology";s:13:"International";s:13:"International";s:5:"Legal";s:5:"Legal";s:17:"Political Science";s:17:"Political Science";s:10:"Psychology";s:10:"Psychology";s:8:"Religion";s:8:"Religion";s:7:"Science";s:7:"Science";s:9:"Technical";s:9:"Technical";s:10:"Veterinary";s:10:"Veterinary";}s:8:"order_no";s:1:"3";} 

獲得所有「的categorys」，如藝術，商業，通信等等等等的名單

感謝您的幫助

UPDATE

運行反序列化之後就是我得到：

array(8) { ["key"]=> string(19) "field_501743d4baa78" ["label"]=> string(8) "Category" ["name"]=> string(8) "category" ["type"]=> string(8) "checkbox" ["instructions"]=> string(0) "" ["required"]=> string(1) "1" ["choices"]=> array(17) { ["Arts"]=> string(4) "Arts" ["Business"]=> string(8) "Business" ["Communications"]=> string(14) "Communications" ["Criminal Justice"]=> string(16) "Criminal Justice" ["Culinary Arts"]=> string(13) "Culinary Arts" ["Education"]=> string(9) "Education" ["Engineering"]=> string(11) "Engineering" ["Health Care"]=> string(11) "Health Care" ["Information Technology"]=> string(22) "Information Technology" ["International"]=> string(13) "International" ["Legal"]=> string(5) "Legal" ["Political Science"]=> string(17) "Political Science" ["Psychology"]=> string(10) "Psychology" ["Religion"]=> string(8) "Religion" ["Science"]=> string(7) "Science" ["Technical"]=> string(9) "Technical" ["Veterinary"]=> string(10) "Veterinary" } ["order_no"]=> string(1) "3" } 

但是我不知道如何通過循環和剛剛得到的類別名稱 - 對不起 - 我是新來的PHP - 可能只是在做一些愚蠢的事 - 感謝您的幫助

Answer 1

這只是一個序列化數組。只要反序列化，並獲得價值很簡單：

$array = unserialize(a:8:{s:3:"key";s:19:"field_501743d4baa78";s:5:"label";s:8:"Category";s:4:"name";s:8:"category";s:4:"type";s:8:"checkbox";s:12:"instructions";s:0:"";s:8:"required";s:1:"1";s:7:"choices";a:17:{s:4:"Arts";s:4:"Arts";s:8:"Business";s:8:"Business";s:14:"Communications";s:14:"Communications";s:16:"Criminal Justice";s:16:"Criminal Justice";s:13:"Culinary Arts";s:13:"Culinary Arts";s:9:"Education";s:9:"Education";s:11:"Engineering";s:11:"Engineering";s:11:"Health Care";s:11:"Health Care";s:22:"Information Technology";s:22:"Information Technology";s:13:"International";s:13:"International";s:5:"Legal";s:5:"Legal";s:17:"Political Science";s:17:"Political Science";s:10:"Psychology";s:10:"Psychology";s:8:"Religion";s:8:"Religion";s:7:"Science";s:7:"Science";s:9:"Technical";s:9:"Technical";s:10:"Veterinary";s:10:"Veterinary";}s:8:"order_no";s:1:"3";}); 
var_dump($array); 

Answer 2

$sample_arr = unserialize($array); //unserialize here 
$sample_arr = $sample_arr['choices']; //get the array 

，那麼你必須保存到$ sample_arr類別列表。

foreach($sample_arr as $temp) { 
    //do stuff with each element here 
} 

例子包括輸出這是一個HTML列表

echo '<ul>'; 
foreach($sample_arr as $temp) { 
    echo '<li>' . $temp . '</li>'; 
} 
echo '</ul>';