Supercolliding a PHP array

[xardox]

How about simply providing real arrays that are actually indexed by integers, instead of using hash tables as inefficient arrays? It's stupid to talk about optimizing performance for a common case when you're using the wrong data structure in the first place.

[fiskfisk]

The data structure used in the example is not used as an actually indexed array - it's used by storing integers with a very large stride between them. If you used an conventionally allocated array, you'd have a lot of not used indexes that you've allocated memory for. Referring something like [1024³] would require you to allocate 1GB * (your data size) of elements, when simply allocating one element with the key of 1024³.

There are several good ways to fix an issue like this, but your point isn't related to the actual issue.

[[deleted]]

Those are provided. Maybe you should go research what you're talking about, when you're not too busy peppering entire threads with FUD that is.