How to read JSON data in php without knowing the key value

Question

I need to read firebase JSON url in php and then display it. My bomb hit below .json data:

{"dDsdE4AlB7P5YYd4fWbYTQKCLPh1":{"email":"[e-mail]","name":"abhishek"},
 "z1ceiLhdh9YVu7lGnVvqDWoWHFH3":{"email":"[e-mail]","name":"ravish"},
 "ghg76JHG8jhkj7GHGJ763kjhFF45":{"email":"[e-mail]","name":"John"}}

I can access the name field using the key value as shown below: -

$url = 'https://xxxx.firebaseio.com/users.json'; // path to JSON file
$data = file_get_contents($url); // put the contents of the file into a variable
$characters = json_decode($data); // decode the JSON feed

echo $characters->dDsdE4AlB7P5YYd4fWbYTQKCLPh1->name;

Now, how to access the "name" field without knowing the key value? Since these keys are automatically generated by firebase and can be any values.

Thank you very much in advance!

Answer 1

Make an associative array from your json. Then you can cross it using foreach with keys and values. This way you will have key value and related data.

$characters = json_decode($data, 1);

foreach ($characters as $key => $value) {
    echo $key . ' ' . $echo $value['name'];
}

Answer 2

:

array_keys($yourEncodedJson);

.

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