Question

我想回显/打印一个JSON字符串，这是我尝试过的。

我已经解码，因为它返回了关联数组。

 $decoded = json_decode('{"Title": "The Cuckoos Calling",
                                "Author": "Robert Galbraith",
                                "Detail": {
                                "Publisher": "Little Brown"
                                }}', true/* returns Associative Array */);

                foreach ($decoded as $head => $inner) {

                    echo $head . ': </br>';
                }

它只打印......

Title: 
Author: 
Detail:

这就是我想要的......

Expected Output :
Title  : The Cuckoos Calling
Author : Robert Galbraith

修改

其print_r()输出为。

Array ( [Title] => The Cuckoos Calling [Author] => Robert Galbraith [Detail] => Array ( [Publisher] => Little Brown ) )

var_dump()是

 array (size=3)
  'Title' => string 'The Cuckoos Calling' (length=19)
  'Author' => string 'Robert Galbraith' (length=16)
  'Detail' => 
    array (size=1)
      'Publisher' => string 'Little Brown' (length=12)

Answer 1

您是否注意到您只打印$键而不是值???

foreach ($decoded as $head => $inner) {
    echo $head . ': '. $inner . '</br>';
}

这就是你需要的：

function arrayToUl($array)
{
    $out = "<ul>";
    foreach ($array as $key => $value) {
        $value_string = $value;
        if (is_array($value))
            $value_string = arrayToUl($value);
        $out .= "<li>{$key} : {$value_string}</li>";

    }
    $out .= "</ul>";
    return $out;
}

echo arrayToUl($decoded);

Answer 2

只需使用array_walk_recursive

即可

array_walk_recursive($decoded, function($key,$value) {
  echo $value.' :'.$key.'<br>';
});

<强>输出：

Title :The Cuckoos Calling
Author :Robert Galbraith
Publisher :Little Brown

如何回应JSON字符串

2 个答案: