PHP字符串JSON數組

所以基本上我在做，看起來像這樣（的var_dump）捲曲請求和響應越來越：PHP字符串JSON數組

string(595) "{"user_id":1,"currency":"eur","purchase_packs":{"1":{"amount":500,"allowed_payment_methods":["ideal","paypal","visa","mc"]},"3":{"amount":1000,"allowed_payment_methods":["mc","ideal","paypal","visa"]},"6":{"amount":2500,"allowed_payment_methods":["mc","ideal","paypal"]},"8":{"amount":5000,"allowed_payment_methods":["ideal"]},"9":{"amount":10000,"allowed_payment_methods":["ideal"]}},"payment_methods":{"ideal":{"name":"ideal","allow_recurring":false},"paypal":{"name":"paypal","allow_recurring":false},"visa":{"name":"visa","allow_recurring":false},"mc":{"name":"mc","allow_recurring":false}}}"

我想要的就是訪問它在這樣的JS文件：

success: function (data) { 
    alert(data.user_id); 
}

但我不知道如何正確轉換（？）。

在那之後我的下一個步驟（問題）會，如果我能for循環每購買包做了，所以我可以爲他們的每一個

大概是這樣的創建按鈕：

var pack; 
var packs = data.purchase_packs; 
for (pack= 0; pack < packs.length; pack++) { 
    console.log(packs[pack]); 
}

來源

2013-12-10 user1410644

你的js ajax調用如果使用jquery可以有指定的響應類型，所以它會把你的php返回的json作爲本地對象存儲，然後你可以訪問。 – Dave

不需要在PHP中將其轉換爲任何內容......它已經是JSON字符串。只需要echo字符串以便消耗 – charlietfl

好吧，我已經嘗試過不轉換它，只是echo字符串，當我這樣做時：data.user_id它表示它是未定義的。 – user1410644

我試圖理解你的「問題」 ....

在JS：

$.post('/some/url',{query: 'somequery'}, 
function (data) { 
    try { 
     data = JSON.parse(data); 
    } catch (e) { 
     return false; 
    } 
    console.log(data); 
});

在PHP：

data = json_decode(rtrim($myJSONEncodedString, "\0")); 
if (!empty($data->purchase_packs) 
    foreach ($data->purchase_packs as $key => $value) 
     var_dump($value);

來源

2013-12-10 14:21:00

JSON解析完成了正確訪問元素的工作。但for循環需要在代碼的JavaScript部分，而不是PHP。拉吉夫蘭詹的答案有用。所以你們都幫助了我。如何在這種情況下選擇最佳答案？ – user1410644

點擊「接受該答案」，正在回答投票計數器 –

我知道如何接受答案。我只是不知道選擇哪一個。但是我會和你一起走，因爲你速度更快，這是我的問題的第一部分。 – user1410644

使用捲曲接收響應後，只是回聲<script></script>標籤之間的JSON字符串。

然後JSON字符串的樣子：

<script> 
var jsondata = {"user_id":1,"currency":"eur","purchase_packs":{"1":{"amount":500,"allowed_payment_methods":["ideal","paypal","visa","mc"]},"3":{"amount":1000,"allowed_payment_methods":["mc","ideal","paypal","visa"]},"6":{"amount":2500,"allowed_payment_methods":["mc","ideal","paypal"]},"8":{"amount":5000,"allowed_payment_methods":["ideal"]},"9":{"amount":10000,"allowed_payment_methods":["ideal"]}},"payment_methods":{"ideal":{"name":"ideal","allow_recurring":false},"paypal":{"name":"paypal","allow_recurring":false},"visa":{"name":"visa","allow_recurring":false},"mc":{"name":"mc","allow_recurring":false}}}; 
</script>

然後，<script></script>之間的JavaScript代碼。像這樣：

<script src="http://code.jquery.com/jquery-latest.min.js"></script> 
<script> 
    alert(jsondata.user_id); // return user_id value 

    jQuery.each(jsondata.purchase_packs, function(i, val) { 
     alert(val.amount); // return amount 
     var paymentMethod = val.allowed_payment_methods; 
     jQuery.each(paymentMethod, function() { 
      alert(this); // will return all payment gateway method 
     });  
    }); 
</script>

希望會有所幫助！

來源

2013-12-10 14:23:48

它幫了很多！謝謝！ – user1410644

你最歡迎:) –

PHP字符串JSON數組

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