Generating desirable JSON format in PHP - php

Question

I amnot familiar php arrays. Therefore I couldn't solve that problem :
My data comes from database. I didn't post database connection parts, they work perfectly. As I understand I need to use multidimensional array. My Json format should be like this
{
"monthly":[
{
"id":1,
"name":"This is a JSON event",
"startdate":"2016-9-15",
"enddate":"2016-9-15",
"starttime":"12:00",
"endtime":"2:00",
"color":"#FFB128",
"url":""
},
{
"id":2,
"name":"This is a JSON event",
"startdate":"2019-3-25",
"enddate":"2019-3-25",
"starttime":"12:00",
"endtime":"23:00",
"color":"#EF44EF",
"url":""
}
]
}
My PHP script (relevant part) :
try {
$q = "SELECT * FROM eventcalendar";
$res = $db->prepare($q);
$res->execute();
if ($res->rowCount() != 0) {
$data = array('monthly' => array());
$push_array = array();
foreach ($res as $key) {
$data['monthly']['id'] = $key['id'];
$data['monthly']['name'] = $key['name'];
$data['monthly']['startdate'] = $key['startdate'];
$data['monthly']['enddate'] = $key['startdate'];
$data['monthly']['color'] = $key['color'];
$data['monthly']['starttime'] = 12;
$data['monthly']['endtime'] = 12;
$data['monthly']['url'] = "";
array_push($push_array, $data);
}
file_put_contents('../js/events.json', json_encode($push_array));
echo('<div class="alert alert-success resultsuccess" ><h4 class="alert-heading">Successful!</h4></div>');
}
} catch (Exception $e) {
echo('<div class="alert alert-danger resultsuccess" >'.'Error: '.$e->getMessage().'</div>');
}
I get that JSON format
[
{
"monthly":{
"id":"1",
"name":"test1",
"startdate":"2019-03-29",
"enddate":"2019-03-29",
"color":"#ffb128",
"starttime":12,
"endtime":12,
"url":""
}
},
{
"monthly":{
"id":"2",
"name":"test2",
"startdate":"2019-03-29",
"enddate":"2019-03-29",
"color":"#4263e6",
"starttime":12,
"endtime":12,
"url":""
}
}
]
Thanks for reading...

Answer 1

Your problem is that you are creating new arrays with a monthly index on each pass through your loop, instead of pushing the new data into the existing monthly array. Try this instead:
if ($res->rowCount() != 0) {
$push_array = array('monthly' => array());
$data = array();
foreach ($res as $key) {
$data['id'] = $key['id'];
$data['name'] = $key['name'];
$data['startdate'] = $key['startdate'];
$data['enddate'] = $key['startdate'];
$data['color'] = $key['color'];
$data['starttime'] = 12;
$data['endtime'] = 12;
$data['url'] = '';
array_push($push_array['monthly'], $data);
}