PHP Associative Array to JSON - php

Question

I need to have data output in a very specific format to be used with something.
$product = Product::with('product_attribute_values', 'product_attribute_values.product_attribute_key')->find(2);
$product_decoded = json_decode($product, true);
I need to extract product attribute values into a specific format and it currently looks like:
I wish for it be like:
{
"Material":"Plastic",
"Printing Method":"Pad",
"Ink Colour":"Black",
"Barrel Colour":"Silver",
"Grip Colour":"Black"
}
I have attempted this:
$final_array = array();
foreach($product_decoded['product_attribute_values'] as $pav) {
$array = [
$pav['product_attribute_key']['name'] => $pav['name']
];
array_push($final_array, $array);
}
return json_encode($final_array);
This results in data looking like:
[
{"Material":"Plastic"},
{"Printing Method":"Pad"},
{"Ink Colour":"Black"},
{"Barrel Colour":"Silver"},
{"Grip Colour":"Black"}
]
How would this be achieved?

Answer 1

You can do it like this:
foreach($product_decoded['product_attribute_values'] as $pav) {
$array[$pav['product_attribute_key']['name']] = $pav['name'];
}
return json_encode($array);

Answer 2

For something like this you could use collections:
return collect($product_decoded['product_attribute_values'])
->pluck('name', 'product_attribute_key.name')
->toJson();
Alternatively, you could use the array helpers:
$finalArray = Arr::pluck($product_decoded['product_attribute_values'],'name', 'product_attribute_key.name' );
return json_encode($finalArray);

Answer 3

You need to have it in an object instead of an array.
$item = array("Material"=>"Plastic", "Printing Method"=>"Pad", "Ink Colour"=>"Black", "Barrel Colour"=>"Silver", "Grip Colour"=>"Black");
echo json_encode($item);
will result in this JSON:
[
{"Material":"Plastic"},
{"Printing Method":"Pad"},
{"Ink Colour":"Black"},
{"Barrel Colour":"Silver"},
{"Grip Colour":"Black"}
]
Which is correct JSON array syntax.
In order to get
{
"Material":"Plastic",
"Printing Method":"Pad",
"Ink Colour":"Black",
"Barrel Colour":"Silver",
"Grip Colour":"Black"
}
You would need soemthing like
$item->Material = "Plastic";
$item->PrintingMethod = "Pad";
$item->InkColour = "Black";
$item->Barrel Colour = "Silver";
$item->GripColour = "Black;
json_encode($item);