访问JSON变量的奇怪响应

I have this code:

<?php
$jsonurl = "http://api.wipmania.com/json";
$jsonfgc = file_get_contents($jsonurl);
$json = json_decode($jsonfgc, true);

foreach ( $json["address"] as $address => $country_code )
    {   
      echo $address["country_code"];
    }
?>

However, when I print this out, I only get "cccccr". I try just echoing $country_code but I get "North AmericaNA-United StatesUS-". Any help?

If you're actually trying to grab the country code, do the following:

echo $json['address']['country_code'];

A loop is not required there.

I try just echoing $country_code but I get "North AmericaNA-United StatesUS-". Any help?

For an explanation as to why this is happening:

You probably didn't add any linebreaks in your code. So it appears as if it's a single string. It's actually not.

Try:

foreach ( $json["address"] as $address => $country_code )
{   
    echo $country_code."<br/>
";
}

The output should be:

North America
NA
-
United States
US
-

See the difference!

Why you are using $address as array it is just an index.

If you want only country code

Use:

//foreach ( $json["address"] as $address => $country_code )
//{   
  echo $json["address"]["country_code"];
//}

Try printing it out first, it will make it much easier to figure it out. (for debuggin ofcourse)

var_dump($json); // or print_r( $json ); if you want

To print keys and values you can use this:

foreach( $json['address'] AS $index => $value ) {
  echo "$index - $value<br />";
}

<?php
$jsonurl = "http://api.wipmania.com/json";
$jsonfgc = file_get_contents($jsonurl);
$json = json_decode($jsonfgc, true);

echo $json["address"]["country_code"]; //if json return single value
//if return multiple then execute it
foreach ( $json as $key => $val )
    {   
      if($key=="address"){
      echo $json[$key]['country_code'];
      };

    }
?>

You don't need foreach here. Just use:

echo $json["address"]["country_code"];

Note that in PHP 5.4 and later, your code would actually generate warnings: "Warning: Illegal string offset 'country_code'". In your foreach loop (which enumerates all properties in the object), $address is a string (the property name), not an array.