<?php
header('Access-Control-Allow-Origin: *');
header('Content-Type: application/json');

read_data();

function read_data() {
    $data = [
        [ "id"=>1, "name"=>"vaj", "price"=>1.8 ],
        [ "id"=>2, "name"=>"kenyér", "price"=>0.8 ],
        [ "id"=>3, "name"=>"tej", "price"=>0.9 ]
    ];
    
    $res = json_encode(
        $data,
        JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT 
    );
    echo $res;
}