regex testing

[Matt McKeon]

I was testing some regex patterns with isRegex and wasn't quite sure
about the results that were returned. My thought going into it was that
isRegex would return true if the *whole* $value matched the $pattern,
but that doesn't seem to be the case.

Here's my quick test http://pastebin.com/m484c4d5c
You can see where I added a check to capture the matches in preg_match
directly and compare $matches[0] to the supplied string. As per the php
docs[0] $matches[0] always returns the whole match. Maybe this test is
what should be returned instead of the return value of preg_match?

Is my thinking here correct? If not, what is the intended behavior of
isRegex?

Thanks,
Matt

[0] http://us3.php.net/manual/en/function.preg-match.php

[Ed Finkler]

isRegex simply should return true if the regex finds a match in the
input. You could give it a different regex if you wanted to make sure
the entire input was matched (start with ^, end with $, etc).

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Ed Finkler
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[Matt McKeon]

hah, well I completely overlooked using ^ and $. Thanks, I'll have to go
play with that then.

Matt