Remove Chinese Characters with Preg_replace?

Question

I am trying to remove chinese characters from string. Tried this but can't get this working. It says:

Warning: preg_replace() [function.preg-replace]: Compilation failed: character value in \x{...} sequence is too large at offset 9 in

preg_replace('/[^\x{4e00}-\x{9fa5}]+/', '', $string)

How can I get this working ?

Answer 1

In UTF-8 mode, "\x{...}" is allowed, where the contents of the braces is a string of hexadecimal digits.

You don't appear to be in UTF-8 mode. To enable this mode, add the u modifier to the end of the regex.