PHP: testing for existence of a cell in a multidimensional array

Question

I have an array with numerous dimensions, and I want to test for the existence of a cell.

The below cascaded approach, will be for sure a safe way to do it:

Answer 1

For a fast one liner you can use has method from this array library:

Arr::has('dim1Key.dim2Key.dim3Key')

Big benefit is that you can use dot notation to specify array keys which makes things simpler and more elegant.

Also, this method will work as expected for null value because it internally uses array_key_exists.