从内部来说，它的算法（S）不使用PHP来实现各种排序功能，它提供？这似乎是usort变种可能会使用不同的算法比内置的排序，但我想知道。

Internally speaking, which algorithm(s) does PHP use to implement the various sort functions it offers? It seems like the usort variants might use a different algorithm than the built in sorts, but I wanted to know.

我会在哪里，即使找到这些信息？

Where would I even find this information?

谢谢！

推荐答案

您可以找到通过查看PHP手册中的信息。 http://php.net/sort 说PHP使用的的快速排序。如果做不到这一点，你总是可以通过C本身的PHP源$ C ​​$跋涉。

You could find the information by looking at the php manual. http://php.net/sort says PHP uses an implementation of Quicksort. Failing that, you could always trudge through the PHP source code itself.