For the example you provided the regex approach will run faster and be easier to read. I tend to prefer intuitive code over fast code except when it really matters.

To satisfy your curiosity you can play with the Benchmark module, which turnstep wrote a tutorial for in this node.

As you benchmark more of your code you may find yourself committing one of the cardinal sins - premature optimization.

In reply to Re: Is one form of character substitution better than the other, and if so, why? by imp
in thread Is one form of character substitution better than the other, and if so, why? by OfficeLinebacker

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