utf 8 - PHP: case-insensitive preg_replace of a cyrillic string in UTF8 -


I have displayed users of my web site and want to change a certain Russian city (PostgreSQL 8.4.7 in UTF Database stored in 8+ CentOS 5.5 / 64 bits Linux) by its old name (this is an insider fun): 

  preg_replace ('/ d ?? оР»Ð³Ð¾Ð³Ñ ?? Ð ° d '/ IU', 'Ð¡Ñ ?? Ð ° Ð »Ð¸Ð½Ð³Ñ ?? Ð ° Ð' ', $ city);   
 Unfortunately this only works for exact matches:  Ð ?? оР»Ð³Ð¾Ð³ÑÑ ?? Ð ° Ð '.  
 This does not work for other cases, such as  Ð ?? Ð ?? Ð ?? Ð ?? Ð ?? Ð ?? D with d ?? Ð ??  or  воР»Ð³Ð¾Ð³ÑÑ ?? Ð ° d '.  
 If I modify my source code  
  preg_replace ('/ [d ?? ²²] оР»Ð³Ð¾Ð³Ñ ?? Ð ° d' / IU ',' ¡¡ Ñ ​​?? Ð ° Ð »Ð¸Ð½Ð³Ñ ?? Ð ° Ð ', $ city);   
 Then this second matter will be caught above.  
 Does anyone know what it is going on and how it can be fixed (assuming I do not want to write   for every  letter [Xx ] )?  
 Thank you! Alex  
  Update:   
  # rpm -qa | Grep php php53-bcmath-5.3.3-1.el5 php53-gd-5.3 .3-1.el5 php53-common-5.3.3-1.el5 php53-pdo-5.3.3-1.el5 php53-mbstring- 5.3.3-1.el5 php53-xml-5.3.3-1.el5 Php53-5.3.3-1.el5 php53-cli-5.3.3-1.el5 php53-pgsql-5.3.3-1.el5 # Rpm -qa | Grep pcre pcre-6.6-2.el5_1.7  PHP 5.3.3-PHP).   
 
):  
 < Code> $ str1 = 'Ð ?? оР»Ð³Ð¾Ð³ÑÑ ?? Ð ° Ð '; $ Str2 = 'Ð ?? Ð ?? Ð ?? Ð ?? Ð ?? Ð ?? Ð Ð ?? Ð ?? ';;; $ Str3 = 'воÐ' гогÑÑ ?? Ð degree Ð ''; Var_dump (preg_replace ('/ Ð ?? оР»Ð³Ð¾Ð³Ñ ?? Ð ° Ð' / iu ',' Ð¡Ñ ?? Ð ° л Ð¸Ð½Ð³Ñ ?? Ð ° Ð ', $ str1)); Var_dump (preg_replace ('/ d ?? оР»Ð³Ð¾Ð³Ñ ?? Ð ° d' / IU ',' Ð¡Ñ ?? Ð ° л Ð¸Ð½Ð³Ñ ?? Ð ° d '', $ str2)); Var_dump (preg_replace ('/ d ?? оР»Ð³Ð¾Ð³Ñ ?? Ð ° d' / IU ',' С¾ ?? Ð ° л Ð¸Ð½Ð³Ñ ?? Ð ° d '', $ str3));   
 output  
  string (20) "Ð¡Ñ ?? Ð ° л Ð¸Ð½Ð³Ñ ?? Ð ° Ð '"string (20) "Ð¡Ñ ?? Ð ° л Ð¸Ð½Ð³Ñ ?? Ð ° d '"string (20)" Ð¡Ñ ?? Ð ° Ð »Ð¸Ð½Ð³Ñ ?? Ð ° d'"   
 Which PCEE version is using your PHP? Check for  phpinfo ()  for  pcre  -section This is on my system:  
  ... peer PCR (Perl consistent regular expressions ) Help = & gt; Enabled PCRE Library Version = & gt; 8.02 2010-03-19 ...

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