[wp-trac] [WordPress Trac] #11738: sanitize_text_field() issue with UTF-8 characters

[WordPress Trac]

#11738: sanitize_text_field() issue with UTF-8 characters
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 Reporter:  hakre         |       Owner:             
     Type:  defect (bug)  |      Status:  new        
 Priority:  normal        |   Milestone:  2.9.2      
Component:  General       |     Version:  2.9.1      
 Severity:  normal        |    Keywords:  needs-patch
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Comment(by Denis-de-Bernardy):

 per the php doc:

 http://php.net/manual/en/reference.pcre.pattern.modifiers.php

 > u (PCRE8)
 >
 > This modifier turns on additional functionality of PCRE that is
 incompatible with Perl. Pattern strings are treated as UTF-8. This
 modifier is available from PHP 4.1.0 or greater on Unix and from PHP 4.2.3
 on win32. UTF-8 validity of the pattern is checked since PHP 4.3.5.

 So it's available all the time given the current requirements. And we'd
 even get validity if we bump the requirement to php 4.3.5 or php 4.4.

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Ticket URL: <http://core.trac.wordpress.org/ticket/11738#comment:3>
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