Insert new object into objects tree. How? - php

Question

I have just finished creating this beautiful php object tree. How would I go about inserting new objects using a loop into the items node array? Basically how do I insert new anonymous item objects into the items array in this object tree?
Take a look
<?php
$phpObjectTree =
(object)[
'apiVersion' => '1.0',
'data' => (object)[
'requested' => '2020-01-01T23:59:59.001Z',
'status' => 'OK',
'estimate' => (object)[
'id' => '1001',
'type' => 'Commercial',
'client' => (object)[
'name' => 'ABC Construction, Inc.',
'address1' => '123 Main St',
'city' => 'Salt Lake City',
'state' => 'UT',
'postalCode' => '84101'
],
'summary' => (object)[
'generalRequirements' => (object)[
'default' => 0
],
'salesTax' => (object)[
'material' => 4.85,
'labor' => 4.85,
'equipment' => 4.85
],
'overheadProfit' => (object)[
'material' => 10,
'labor' => 10,
'equipment' => 10
],
'contingency' => (object)[
'default' => 3
],
'performanceBond' => (object)[
'default' => 1.3
],
'laborPlus' => (object)[
'dailyRate' => 280,
'crewCount' => 0,
'dayCount' => 0
],
'locationAdjustment' => (object)[
'factor' => 90.1
],
]
],
'items' => [
(object)[
'id' => '2001',
'number' => '09 91 23.00 0000',
'description' => 'Line Item 1',
'quantity' => 0,
'unit' => 'sf',
'material' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'labor' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'equipment' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'lineTotal' => 0
],
(object)[
'id' => '2002',
'number' => '09 91 23.00 0000',
'description' => 'Line Item 2',
'quantity' => 0,
'unit' => 'sf',
'material' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'labor' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'equipment' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'lineTotal' => 0
]
]
]
];
// SET JSON HEADER...
header('Content-type:application/json;charset=utf-8');
print_r(json_encode($phpObjectTree));
?>

Answer 1

Same way you'd modify any array in php:
https://www.php.net/manual/en/language.types.array.php#language.types.array.syntax.modifying
$phpObjectTree->data->items[] = (object)[
'id' => '2003',
'number' => '09 91 23.00 0000',
'description' => 'Line Item 3',
'quantity' => 0,
'unit' => 'sf',
'material' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'labor' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'equipment' => (object)[
'cost' => 0,
'costEach' => 9.99
],
'lineTotal' => 0
];

Answer 2

Or you can use stdClass to create new object and add properties.
$obj = new \stdClass;
$obj->newProperty = 'value';