使用JSON_encode在JSON中键入（integer，Boolean，..）

Question

I have an array similar to :

        [0] => stdClass Object
            (
                [name] => John                    
                [id] => 1
                [pass] => 0
            )

The array is returned by a sql query. Now I need to use json_encode and I want the id to be integer and pass Boolean, but they get string types after json_encode. How can I do it with the correct datatypes in json_encode?

Answer 1

You could loop through the array, casting each value with the key of pass to a boolean and each id to an integer like so:

<?php

foreach ($results as $result) {
    $result->id = (int) $result->id;
    $result->pass = (bool) $result->pass;
}