Fill array with dynamic content in PHP - php

Question

I need to fill an array with a dynamic list of products.
To do so, I'm using the following code:
$list_array = array(
$products[] = array(
'SKU' => '0001',
'Title' => 'Bread',
'Quantity' => '',
),
$products[] = array(
'SKU' => '0002',
'Title' => 'Butter',
'Quantity' => '',
)
);
return $list_array;
It works fine if I know every product in the array.
But in my use case I have no idea which products are in the array.
So I want to fill the array with dynamic data.
I came up with something this:
$products = get_posts( 'numberposts=-1&post_status=publish&post_type=product' );
foreach ( $products as $product ) {
$products[] = array(
'SKU' => $product->id,
'Title' => $product->post_title,
'Quantity' => '',
),
}
return $products;
I know there is something really wrong with the array. But I couldn't figure out what it is.

Answer 1

The code you submitted cannot work. The short syntax $a[] = ... is to append data to the $a array, for example:
$a = [];
$a[] = 1;
$a[] = 2;
// $a = [1, 2]
You can also do it in a more efficient way with a map function:
function reduce($product)
{
return array(
'SKU' => $product->id,
'Title' => $product->post_title,
'Quantity' => '',
);
}
return array_map('reduce', $products);
It will execute the function reduce and replace value for each element of you array. Complete doc here: https://www.php.net/manual/en/function.array-map.php

Answer 2

Your problem is that you are overwriting the $products array that you are looping over inside the loop. Change the name of the variable in the loop to fix that:
$list_array = array();
foreach ( $products as $product ) {
$list_array[] = array(
'SKU' => $product->id,
'Title' => $product->post_title,
'Quantity' => ''
);
}
return $list_array;