PHP :: Bug #61958 :: Trailing linebreak ignored

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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[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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