> 1. What is the overhead on preg_replace?

it really depends on your operation. when you think it can be done
using str* functions then go for it as they are much faster than preg*

> 2. Is there a better way to strip spaces and non alpha numerical
> characters from text strings? I suspect not... maybe the Shadow does ???

if those characters are in the middle, preg_replace is the right function.


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