Is it possible to randomize data from a JSON?

Question

I am making a quiz system, where the correct answer will always be the first alternative in the database, but it is necessary that it be random when it comes to answering. (PHP)

It is possible to randomize the data within alternatives?

"questions": [{
    "title": "Qual é a raça de Goku?",
    "image": {
        "path": ""
    },
    "alternatives": [{
        "title": "Sayajins",
        "image": {
            "path": ""
        },
        "correct": true
    }, {
        "title": "Anjo",
        "image": {
            "path": ""
        }
    }, {
        "title": "Android",
        "image": {
            "path": ""
        }
    }],
    "alternativeType": 1
}

Answer 1

You can use a PHP function called shufle(https://www.php.net/manual/en/function.shuffle.php).

With the shuffle function you can shuffle the elements of an array, in this case, shuffling the alternatives of the questions.

You can do it this way:

<?php

$questions = [
    [
        "title" => "Qual é a raça de Goku?",
        "image" => [
            "path" => "",
        ],
        "alternatives" => [
            [
                "title" => "Sayajins",
                "image" => [
                    "path" => "",
                ],
                "correct" => true,
            ], [
                "title" => "Anjo",
                "image" => [
                    "path" => "",
                ],
            ], [
                "title" => "Android",
                "image" => [
                    "path" => "",
                ],
            ],
        ],
        "alternativeType" => 1,
    ],
];

array_map(function ($question) {
    shuffle($question['alternatives']);
}, $questions);

So you go through all the questions and shuffle(suffle), the alternatives, leaving items randomly ordered.

I hope I’ve helped!