Why doesn't the where method of Laravel collections support all PHP statements?

Question

Laravel

$collection = collect([
['product' => '1', 'price' => 1],
['product' => '2', 'price' => 2],
['product' => '3 ', 'price' => 3],

]);
print $collection->where('price', '&', 1)->pluck('product')->implode(', ');

Prints 1 instead of 1.3.

It would be logical to have all the operators here https://github.com/laravel/framework/blob/c6cf3813...

Answer 1

https://laravel.com/docs/master/collections#method...

Answer 2

Because there are sql statements.