regexp with russian lang

I can’t solve my problem with regexp.

Ok, when i type:

$string = preg_replace("#[name=([a-zA-Z0-9 .-]+)*]#","$name_start $1 $name_end",$string);

everything is ok, except situation with Russian language.

so, i try to re-type this reg-exp:

$string = preg_replace("#[name=([a-zA-Z0-9**а-яА-Я** .-]+)*]#","$name_start $1 $name_end",$string);

but this not working,

i know some idea, just write:

$string = preg_replace("#[name=([a-zA-Z0-9йцукенгшщзхъфывапролджэячсмитьбю .-]+)*]#","$name_start $1 $name_end",$string);

but this is crazy 😀

please, give me simple variant

Answer

Try a Unicode range:

'/[x{0410}-x{042F}]/u'  // matches a capital cyrillic letter in the range A to Ya

Don’t forget the /u flag for Unicode.

In your case:

"#[name=([a-zA-Z0-9x{0430}-x{044F}x{0410}-x{042F} .-]+)*]#u"

Note that the STAR in your regex is redundant. Everything already gets “eaten” by the PLUS. This would do the same:

"#[name=([a-zA-Z0-9x{0430}-x{044F}x{0410}-x{042F} .-]+)]#u"