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Bug #61958 Trailing linebreak ignored
Submitted: 2012-05-06 04:19 UTC Modified: 2012-05-06 06:06 UTC
From: kulakov74 at yandex dot ru Assigned:
Status: Not a bug Package: PCRE related
PHP Version: 5.3.12 OS: Linux, Windows 7
Private report: No CVE-ID: None
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From: kulakov74 at yandex dot ru
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 [2012-05-06 04:19 UTC] kulakov74 at yandex dot ru 
Description:
------------
I want to check if a string is a single wordcharacter but even it has a trailing linebreak preg_match() returns 1. 

Test script:
---------------
echo preg_match('~^\w$~', "a\n");

Expected result:
----------------
0

Actual result:
--------------
1

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 [2012-05-06 04:35 UTC] kulakov74 at yandex dot ru 
Sorry, the title should be "preg_match() ignores trailing linebreak"
 [2012-05-06 05:07 UTC] rasmus@php.net
-Status: Open +Status: Not a bug
 [2012-05-06 05:07 UTC] rasmus@php.net 
This is documented behaviour and consistent with every Perl-style regex 
implementation in every language. Use the 'D' modifier if you want to change that 
behaviour. See http://www.php.net/manual/en/reference.pcre.pattern.modifiers.php

eg. 

echo preg_match('~^\w$~D', "a\n");
 [2012-05-06 06:06 UTC] kulakov74 at yandex dot ru 
Thank you.
 
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