php循环通过json数组(php loop through json array)

我有一个像这样的json字符串：

$fields_string = '

{"fields":

{"customers":[{"name":"john","id":"d1"},

{"name":"mike","id":"d2"},

{"name":"andrew","id":"d3"},

{"name":"peter","id":"d4"}]

}

}'

我该如何打印每个名字？ 稍后我将在html选项中使用它们，我知道如何做到这一点。 但是我无法把绳子拿出来。 这是我尝试过的东西：

$obj = json_decode($fields_string);

$fields_detail = $obj-?{"fields"}->{"customers"};

在这一点上，我能够通过echo json_encode($fields_detail)打印出客户数组，但在此之前，我希望使用foreach来echo json_encode($fields_detail)名称。 我试了好几次，但没办法。 任何人都可以帮忙。

谢谢！

I have a json string like this:

$fields_string = '

{"fields":

{"customers":[{"name":"john","id":"d1"},

{"name":"mike","id":"d2"},

{"name":"andrew","id":"d3"},

{"name":"peter","id":"d4"}]

}

}'

How can I print each name? I will use them later in a html select options, I know how to do that. But I couldn't get the string out. Here are something I tried:

$obj = json_decode($fields_string);

$fields_detail = $obj-?{"fields"}->{"customers"};

at this point, I am able to print the customer array out by echo json_encode($fields_detail), but before that, I want to get the name break down using foreach. I tried several times, it didn't work. Can anyone help please.

Thanks!

原文：https://stackoverflow.com/questions/15000874

更新时间：2020-01-20 20:54

最满意答案

客户是一个对象数组，因此迭代每个对象并读取属性应该有效。

foreach ($fields_detail as $customer) {

echo $customer->name;

}

Customers is an array of objects so iterating over each object and reading the property should work.

foreach ($fields_detail as $customer) {

echo $customer->name;

}

2013-02-21

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