handling an Array of objects - php

Question

I have a JSON array of objects each object contains a MySQL database row that also contains information about an item. my question is how can I get a certain key-value from an object depending on another key? let me get it straight, items is a JSON array contains a couple of objects each object is generated with both numeric and string keys, So what I need is to get the value of the price key that in the same Object with a specific codenumber basically getting the price value from the codenumber key
the Second thing is how to add a new key within a new value to the object? like if I have a variable called $Count how can I add his value to the object within a new key like Count? is the function array_push can add a new key to the Object?
the JSON array
Array (
[0] => stdClass Object (
[0] => 1
[1] => o4
[2] => Efexor
[3] => Eklil
[4] => 1
[5] => 30
[6] => 15
[7] => Phezer
[8] => Venlafaxine
[9] =>
[10] => 0
[11] => 2020-03-25
[12] => 2021-08-25
[13] => 1
[14] => 0
[15] => 0
[16] => caps
[17] => ..\upload\Efexor.jpg
[id] => 1
[qty] => 15
[Sale] => 1
[name] => Efexor
[bonus] => 0
[price] => 30
[company] => Phezer
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\Efexor.jpg
[owned-com] => Eklil
[pack-size] => 0
[codenumber] => o4
[chemicalcom] => Venlafaxine
[dosage-form] => caps
[concentration] =>
[expiration-date] => 2021-08-25
[production-date] => 2020-03-25
)
[1] => stdClass Object (
[0] => 2
[1] =>
[2] => Efexor
[3] => Eklil
[4] => 1
[5] => 15
[6] => 10
[7] => Phezer
[8] => Venlafaxine
[9] =>
[10] => 0
[11] => 2020-03-25
[12] => 2021-08-25
[13] => 0
[14] => 0
[15] => 0
[16] => caps
[17] => ..\upload\Efexor.jpg
[id] => 2
[qty] => 10
[Sale] => 0
[name] => Efexor
[bonus] => 0
[price] => 15
[company] => Phezer
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\Efexor.jpg
[owned-com] => Eklil
[pack-size] => 0
[codenumber] =>
[chemicalcom] => Venlafaxine
[dosage-form] => caps
[concentration] =>
[expiration-date] => 2021-08-25
[production-date] => 2020-03-25
)
[2] => stdClass Object (
[0] => 3
[1] =>
[2] => panadol
[3] => com2
[4] => 1
[5] => 5
[6] => 12
[7] => GSK
[8] => Paracetamol
[9] =>
[10] => 0
[11] => 2020-04-09
[12] => 2021-02-09
[13] => 0
[14] => 0
[15] => 2
[16] => taps
[17] => ..\upload\panadol.png
[id] => 3
[qty] => 12
[Sale] => 0
[name] => panadol
[bonus] => 2
[price] => 5
[company] => GSK
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\panadol.png
[owned-com] => com2
[pack-size] => 0
[codenumber] =>
[chemicalcom] => Paracetamol
[dosage-form] => taps
[concentration] =>
[expiration-date] => 2021-02-09
[production-date] => 2020-04-09
)
[3] => stdClass Object (
[0] => 4
[1] => codenumber
[2] => name
[3] => owned
[4] => 1
[5] => 9
[6] => 1
[7] => gsk
[8] => gscom
[9] => 12mg
[10] => 3
[11] => 2020-03-25
[12] => 2021-02-09
[13] => 1
[14] => 0
[15] => 0
[16] => caps
[17] => ..\upload\panadol.png
[id] => 4
[qty] => 1
[Sale] => 1
[name] => name
[bonus] => 0
[price] => 9
[company] => gsk
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\panadol.png
[owned-com] => owned
[pack-size] => 3
[codenumber] => codenumber
[chemicalcom] => gscom
[dosage-form] => caps
[concentration] => 12mg
[expiration-date] => 2021-02-09
[production-date] => 2020-03-25
)
[4] => stdClass Object (
[0] => 5
[1] => d322
[2] => fsdfds
[3] => ewfwef
[4] => 1
[5] => 3232
[6] => 222
[7] => none
[8] => nonoe
[9] => nonoe
[10] => 12
[11] => 2020-03-25
[12] => 2021-02-09
[13] => 1
[14] => 0
[15] => 2
[16] => caps
[17] => ..\upload\panadol.png
[id] => 5
[qty] => 222
[Sale] => 1
[name] => fsdfds
[bonus] => 2
[price] => 3232
[company] => none
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\panadol.png
[owned-com] => ewfwef
[pack-size] => 12
[codenumber] => d322
[chemicalcom] => nonoe
[dosage-form] => caps
[concentration] => nonoe
[expiration-date] => 2021-02-09
[production-date] => 2020-03-25
)
[5] => stdClass Object (
[0] => 6
[1] =>
[2] =>
[3] =>
[4] => 1
[5] => 0
[6] => 0
[7] =>
[8] =>
[9] =>
[10] => 0
[11] => 0000-00-00
[12] => 0000-00-00
[13] => 0
[14] => 0
[15] => 0
[16] => eyedrop
[17] => ..\upload\panadol.png
[id] => 6
[qty] => 0
[Sale] => 0
[name] =>
[bonus] => 0
[price] => 0
[company] =>
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\panadol.png
[owned-com] =>
[pack-size] => 0
[codenumber] =>
[chemicalcom] =>
[dosage-form] => eyedrop
[concentration] =>
[expiration-date] => 0000-00-00
[production-date] => 0000-00-00
)
[6] => stdClass Object (
[0] => 7
[1] =>
[2] =>
[3] =>
[4] => 1
[5] => 0
[6] => 0
[7] =>
[8] =>
[9] =>
[10] => 0
[11] => 0000-00-00
[12] => 0000-00-00
[13] => 0
[14] => 0
[15] => 0
[16] =>
[17] => ..\upload\panadol.png
[id] => 7
[qty] => 0
[Sale] => 0
[name] =>
[bonus] => 0
[price] => 0
[company] =>
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\panadol.png
[owned-com] =>
[pack-size] => 0
[codenumber] =>
[chemicalcom] =>
[dosage-form] =>
[concentration] =>
[expiration-date] => 0000-00-00
[production-date] => 0000-00-00
)
[7] => stdClass Object (
[0] => 8
[1] =>
[2] =>
[3] =>
[4] => 1
[5] => 0
[6] => 0
[7] =>
[8] =>
[9] =>
[10] => 0
[11] => 0000-00-00
[12] => 0000-00-00
[13] => 0
[14] => 0
[15] => 0
[16] => eardrop
[17] => ..\upload\panadol.png
[id] => 8
[qty] => 0
[Sale] => 0
[name] =>
[bonus] => 0
[price] => 0
[company] =>
[draftid] => 1
[discount] => 0
[imageurl] => ..\upload\panadol.png
[owned-com] =>
[pack-size] => 0
[codenumber] =>
[chemicalcom] =>
[dosage-form] => eardrop
[concentration] =>
[expiration-date] => 0000-00-00
[production-date] => 0000-00-00
)
)
my attempt to make the first function core.php:-
<?PHP
public function getPrice($id,$codenumber){
if($this->connected === true){
try{
$items = $this->connection->prepare("SELECT `items` FROM `bills` WHERE id=:id");
$items->bindParam(":id",$id);
$items->execute();
$fetchedItems = $items->fetchColumn();
$items = json_decode($fetchedItems);
foreach ($items as $item){
$price = $item->price;
echo $price; // What i want is to echo the Price-Key for the value that has the $codenumber [key]
}
}
catch(PDOException $e){
if($this->errors === true){
return $this->error($e->getMessage());
}else{
return false;
}
}
}
}
?>

Answer 1

Assuming that codenumber is unique in the array, just re-index your array with codenumber and then it's simple (PHP >= 7):
$codenumber = 'o4';
$array = array_column($array, null, 'codenumber');
echo $array[$codenumber]->price; // outputs 30
That's reusable multiple times. If you just need to do it once:
echo array_column($array, null, 'codenumber')[$codenumber]->price;

Answer 2

I believe what you are looking for is something like this, where $id is the value you are searching for and $json is your array. If count doesn't exist, it will automatically be created with a value of 0.
$id = 100;
$items = json_decode($fetchedItems, true);
foreach($items as $k => $v){
if(isset($json[$k]["count"]) === false){
$json[$k]["count"] = 0;
}
if($v["codenumber"] == $id){
$json[$k]["count"] += $v["price"];
}
}