解析JSON字符串与多个阵列

我试图解析此JSON字符串解析JSON字符串与多个阵列

$json = {"fields":{ 
"relationshipStatus":[{"fieldId":4,"name":"Committed"},{"fieldId":2,"name":"Dating"},{"fieldId":6,"name":"Engaged"},{"fieldId":3,"name":"Exclusive"},{"fieldId":7,"name":"Married"},{"fieldId":8,"name":"Open Relationship"},{"fieldId":5,"name":"Partnered"},{"fieldId":1,"name":"Single"}], 
      "ethnicity":[{"fieldId":1,"name":"Asian"},{"fieldId":2,"name":"Black"},{"fieldId":3,"name":"Latino"},{"fieldId":4,"name":"Middle Eastern"},{"fieldId":5,"name":"Mixed"},{"fieldId":6,"name":"Native American"},{"fieldId":8,"name":"Other"},{"fieldId":9,"name":"South Asian"},{"fieldId":7,"name":"White"}], 
}}

使用此foreach循环，最终我想能够采取的数据，并把它们作为一个选择/列表下拉列表形成。

foreach($json['fields'] as $item){ 
    foreach($item['relationshipStatus'] as $relationship){ 
     echo $relationship['name'] . " " . $relationship['fieldId'] . "<br/>"; 
    } 

    foreach($item['ethnicity'] as $ethnicity){ 
     echo $ethnicity['name'] . " " . $ethnicity['fieldId'] . "<br/>"; 
    } 
}

不管我如何努力拉出来的数据，我不断收到类似的错误：

注意：未定义指数：relationshipStatus在 /Applications/MAMP/htdocs/updateprofile.php上线126警告： /Applications/MAMP/htdocs/updateprofile.php为的foreach（）提供在线126

我在做什么错无效的参数？

来源

2016-04-03 user-44651

描述如果pretty-打印json（即使用jsonlint.com），你会发现数组实际位于'$ json ['fields'] ['relationshipStatus']'下面，而不是在$ json ['fields']'的下面，如你的代码。 – JimL

你绝对正确。 –

第一个foreach已经选择relationshipStatus和ethnicity。也许下面的变化说明我的意思：

foreach($json['fields'] as $key=>$item){ 
if ($key == 'relationshipStatus') 
foreach($item as $relationship){ 
    echo $relationship['name'] . " " . $relationship['fieldId'] . "<br/>"; 
} 
else if ($key == 'ethnicity') 
foreach($item as $ethnicity){ 
    echo $ethnicity['name'] . " " . $ethnicity['fieldId'] . "<br/>"; 
} 
}

来源

2016-04-03 21:54:37

在这里，你在迭代你想获取一个错误way.The阵列值JSON Object实际上是$json['fields']['relationshipStatus']下。

var name = $json['fields']['relationshipStatus']['name']; 
var fieldId = $json['fields']['relationshipStatus']['fieldId'];

=============================== OR =========== =============================

正如A.fink

foreach($json['fields'] as $key=>$item){ 
if ($key == 'relationshipStatus') 
foreach($item as $relationship){ 
    echo $relationship['name'] . " " . $relationship['fieldId'] . "<br/>"; 
} 
else if ($key == 'ethnicity') 
foreach($item as $ethnicity){ 
    echo $ethnicity['name'] . " " . $ethnicity['fieldId'] . "<br/>"; 
} 
}

来源

2016-04-04 04:48:45

解析JSON字符串与多个阵列

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