Yii2: How to convert data type value of a JSON PHP array?

Question

I am using Yii2 framework to create this JSON array:

"data": [
  {
    "id": 201,
    "name": "John",
    "age": "30"
  }
]

The age is a string and I need it to be an integer, that is, without quotation marks. Like this:

"data": [
    {
      "id": 201,
      "name": "John",
      "age": 30
    }
]

This is the PHP function that create the JSON array:

$persons['data'] = Persons::find()
    ->select([
        'id',
        'name',
        'age'
    ])
    ->asArray()
    ->all();

1/ Can you change it BEFORE creating the JSON array? 2/ Where do you need it to be an integer and not a string? You can maybe change it juste BEFORE using it too. 3/ If you can't do it in my 1/ or 2/, maybe try some json_decode($array), transform the string in int then json_encode($array) to get your array as before. — Mickaël Leger
– Mickaël Leger, Commented Aug 9, 2018 at 15:31

Muhammad Omer Aslam · Accepted Answer · 2020-02-02 09:57:20Z

7

You can use JSON_NUMERIC_CHECK flag as second parameter of json_encode() or \yii\helpers\Json::encode() for converting numbers automatically since php 5.3, see here.

You can use the flag like

$data = Persons::find()
    ->select(
      [
         'id',
         'name',
         'age'
      ]
    )
    ->asArray()
    ->all();

$json = \yii\helpers\Json::encode($data,JSON_NUMERIC_CHECK);

edited Feb 2, 2020 at 9:57

answered Aug 9, 2018 at 16:01

Muhammad Omer Aslam

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Comments

Dharman · Accepted Answer · 2021-12-23 06:51:17Z

0

JSON_NUMERIC_CHECK would make name etc also int if Integer is saved in those fields. I am assuming this is in context or rest api. You can override the fields() in your model.

public function fields()
{
    $fields = parent::fields();
    $fields['someProperty'] = function ($model) {
        
        return $model->someOtherProperty + something etc;
    };
    return $fields;
}

edited Dec 23, 2021 at 6:51

Dharman♦

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answered Dec 23, 2021 at 6:45

Fareed Ud Din

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