What is the difference between two identical arrays, but described differently, using an example?

Question

Laravel

I want to extract an array of data from the model by id, and it works . But it doesn't work like that, why?
$products = Product::find( [3, 5, 8] );

$arr = array( 0 => 3, 1 => 5, 2 => 8 );
$products = Product::find($arr );

Answer 1

Do you seriously think that this is the same thing? Does your IDE tell you anything about this?