Re: regex problem

Robin Vickery schrieb:

On 01/06/06, Merlin <ngroups@fastmail.fm> wrote:

Hi there, I do work on following regex: ^(.*)_a[0-9](.*).htm$ This should be valid for "test_a9393.htm", but not for "9393.htm" as ther is no leading _a infront of the number. Unfortunatelly this also works for the 9393.htm file. Can somebody give me a hint why the regex also is true for text that does not start with _a infront of the number?

It won't match something without an _a in it. So there's something you're not mentioning. <?php $test = array('test_a9393.htm','a9393.htm'); foreach ($test as $t) { print preg_match('/^(.*)_a[0-9](.*).htm$/', $t) ?

       "'$t' matches.\n" :
       "'$t' does not match.\n";

} ?> 'test_a9393.htm' matches. 'a9393.htm' does not match. -robin

Thank you robin! That saved my ass :-) Actually my regex was quit fine, the problem was that there was a search function searching for is_numeric that was redirecting to another page *lol* Best regards, Merlin