JSON array in array from SQL database using PHP - php

Question

I have the following code:
$retarray = array();
$hoursarray = array();
$res = $this->mysqli->query("SELECT id, title, groupby FROM scheduler_activity WHERE gewerbe = '$this->gewerbe'");
while($row = $res->fetch_object()) {
$foo = $this->mysqli->query("SELECT dow, start, end FROM scheduler_businesshours WHERE activity = '$row->id'");
while($hours = $foo->fetch_object()){
$hoursarray[] = $hours;
}
$retarray[] = $row;
$retarray["businessHours"] = $hoursarray;
}
return $retarray;
And the following JSON output:
{
"0": {
"id": "1",
"title": "Spinning",
"groupby": "Trainingsgruppe"
},
"businessHours": [{
"dow": "[1,2,3]",
"start": "17:00:00",
"end": "18:00:00"
}, {
"dow": "[4,5]",
"start": "17:30:00",
"end": "18:30:00"
}],
"1": {
"id": "2",
"title": "Massage",
"groupby": "Trainingsgruppe"
},
"2": {
"id": "3",
"title": "Yoga",
"groupby": "Trainingsgruppe"
},
"3": {
"id": "4",
"title": "Dance Academy",
"groupby": "Trainingsgruppe"
}
}
So far it looks correct but I need to get rid of the leading numbers like 0, 1, 2, 3
That it will look like this plus the businessHours:
[{
"id": "1",
"title": "Spinning",
"groupby": "Trainingsgruppe"
}, {
"id": "2",
"title": "Massage",
"groupby": "Trainingsgruppe"
}, {
"id": "3",
"title": "Yoga",
"groupby": "Trainingsgruppe"
}, {
"id": "4",
"title": "Dance Academy",
"groupby": "Trainingsgruppe"
}]
What did I do wrong there?
Thank you!

Answer 1

As I understood about your code, we get business hour for each activity, so it's just a small change at line 10:
$retarray = array();
$hoursarray = array();
$res = $this->mysqli->query("SELECT id, title, groupby FROM scheduler_activity WHERE gewerbe = '$this->gewerbe'");
while($row = $res->fetch_object()) {
$foo = $this->mysqli->query("SELECT dow, start, end FROM scheduler_businesshours WHERE activity = '$row->id'");
while($hours = $foo->fetch_object()){
$hoursarray[] = $hours;
}
$row["businessHours"] = $hoursarray; // Change to this, swap line 10 & 11
$retarray[] = $row;
}
return $retarray;
Hope this helps.

Answer 2

You add two keys. One key is numeric the second is businessHours.
$retarray[] = $row;
$retarray["businessHours"] = $hoursarray;
For instance you can add it businessHours to $row
$row["businessHours"] = $hoursarray;
$retarray[] = $row;

Answer 3

Have you try array_values($array)?
$retarray = array();
$hoursarray = array();
$res = $this->mysqli->query("SELECT id, title, groupby FROM scheduler_activity WHERE gewerbe = '$this->gewerbe'");
while($row = $res->fetch_object()) {
$foo = $this->mysqli->query("SELECT dow, start, end FROM scheduler_businesshours WHERE activity = '$row->id'");
while($hours = $foo->fetch_object()){
$hoursarray[] = $hours;
}
$retarray[] = $row;
$retarray["businessHours"] = $hoursarray;
}
return array_values($retarray);