解析陣列串

Question

我有具有鍵值

Array ([0] =>stdClass Object ([privacy] => {"name": "on", "email": null, "mobile": null, "address": "on", "alt_contact": "on"})) 

我需要打印其中將包含逗號分隔鍵具有值「上」的字符串的對象陣列。結果字符串應該是

$result = "name,address,alt_contact"; 

請幫

Answer 1

這會做的伎倆你..

$json = '{"name": "on", "email": null, "mobile": null, "address": "on", "alt_contact": "on"}'; 
$array = json_decode($json,true); 

$str = ""; 
foreach($array as $key=>$value) 
{ 
    if($value == "on") 
     $str .= $key.","; 
} 
return rtrim($str,","); 

結果： - 姓名，地址，alt_contact

Answer 2

這就是您的請求轉換爲PHP的方式：

我需要

• 打印 - echo()
• 將包含分離逗號的字符串 - 它有值 '上' implode()
• 鍵 - array_keys()

這是直接從上面的列表中的代碼：

$json = '{"name": "on", "email": null, "mobile": null, "address": "on", "alt_contact": "on"}'; 
// Pass TRUE as second argument to get arrays back; stdObject is useless 
$data = json_decode($json, TRUE); 

// print comma separated keys of 'on' 
echo(implode(',', array_keys($data, 'on'))); 

Answer 3

感謝Jaimin，它幫助

必須得到一個數組解析的$隱私對象

$userPrivacies = $userPrivacies[0]->privacy; 

後來使用你的代碼。

使溶液變成

$userPrivacies = $userPrivacies[0]->privacy; 

$array = json_decode($userPrivacies,true); 

$str = ""; 
foreach($array as $key=>$value) 
{ 
    if($value == "on") 
     $str .= $key.","; 
} 
echo rtrim($str,",");