db result to php array - php

Question

I am trying to use morris area chart dynamicly
from my sql query I get the following result
period | item | amount
------ | ---- | ------
20170801 | iphone | 327
20170801 | ipad | 278
20170801 | ipod | 125
20170802 | iphone | 528
20170802 | ipad | 325
20170802 | ipod | 250
etc
now I need to store this in an array like this
data: [{
period: '20170801',
iphone: 327,
ipad: 278,
ipod: 125
}, {
period: '20170802',
iphone: 528,
ipad: 325,
itouch: 250
}, ...]
I am using a while loop through the table for each date it needs to create a new object. For a date in an object it needs to add an element to that object.
I have absolutely no clue how to achieve this

Answer 1

<?php
class test {
private $period = '';
private $item = '';
private $amount = '';
public function __construct($period, $item, $amount) {
$this->period = $period;
$this->item = $item;
$this->amount = $amount;
}
}
$obj = [
new test('20170801', 'iphone', '327'),
new test('20180801', 'iphone2', '328')
];
var_dump($obj);
But most usefull use ORM and after you get data - serialize it to string via php function "json_encode"
http://php.net/manual/en/function.json-encode.php
http://php.net/manual/en/function.json-decode.php

Answer 2

Ok since you have no idea how to start I coded a little script to get you started:
$db = new mysqli('localhost', 'root', '', 'db');
$result = $db->query('SELECT * FROM table');
$data = $result->fetch_all(MYSQLI_ASSOC);
$json = json_encode($data, JSON_PRETTY_PRINT);
print_r($json);
You have to change the database server data and you table name in SQL query, other then that it should just output the whole table data in JSON format. If you want to join all data from teh same date you have to add soem more logic, but that might cause duplicate properties.