This function implements a sort algorithm that orders alphanumeric strings in the way a human being would while maintaining key/value associations. This is described as a "natural ordering". An example of the difference between this algorithm and the regular computer string sorting algorithms (used in sort()) can be seen below:
Example 1. natsort() example
The code above will generate the following output:
For more information see: Martin Pool's Natural Order String Comparison page.
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