Jake was fast ;-) and he is on the right track too
(although I don't think that the substrings he guessed are
the exact ones that are found).
you might want to check preg_match_all to see the matches
that PCRE comes up with for each regexp...
also take a look at:
$test = "7005-N/52";
var_dump(
preg_match("/([0-9]*)\/(.*)/i", $test),
preg_match("/([0-9]*)\-(.*)/i", $test),
preg_match("/^([0-9]*)\/(.*)$/i", $test),
preg_match("/^([0-9]*)\-(.*)$/i", $test)
);
Jake Gardner wrote:
When using "/([0-9]*)(.*)/i" it matches
substring 1: 7005
substring 2: -N/52
When using "/([0-9]*)\/(.*)/i" it matches
substring 1:
substring 2: 52
It looks to me as though its trying to match either or subgroup in order.
On 9/26/05, Jens Schulze <jens@xxxxxxxxxxxxxxxxxx> wrote:
I recently encountered a strange behaviour, could someone please
countercheck it, to either tell me there is an error in my pattern?
I have a test string: "7005-N/52"
I have two match patterns: a) "/([0-9]*)\/(.*)/i"
b) "/([0-9]*)\-(.*)/i"
I check the test string with the help of preg_match, and they both
matched, but normally variant a) shouldn't have matched.
Normally I test my patterns with the tool "The Regex Coach", and
according to this tool it shouldn't have matched.
PHP version is 5.0.4, PCRE extension version is 4.5 01-December-2003
Thanks for any help or feedback,
Jens
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