将JSON字符串转换为JSON数组

Question

I have a CSV file like this

first_name,last_name,phone
Joseph,Dean,2025550194
Elbert,Valdez,2025550148

Using this csv-to-json.php from GitHub I get output like this

[{
    "first_name": "Joseph",
    "last_name": "Dean",
    "phone": "2025550194",
    "id": 0
}, {
    "first_name": "Elbert",
    "last_name": "Valdez",
    "phone": "2025550148",
    "id": 1
}]

This is almost what I want - however instead of

"phone": "2025550194"

I need

"phone": [{
    "type": "phone",
    "number": "2025550194"
}]

How do I correct this?

Answer 1

If you get the JSON string, then you would of course first convert it to an array with:

$arr = json_decode($json, true);

But probably you already have the array. You then apply this loop to it:

foreach($arr as &$row) {
    if (isset($row['phone'])) { // only when there is a phone number:
        $row['phone'] = [[ "type" => "phone", "number" => $row['phone'] ]];
    }
}

See it run on eval.in.