(PHP 4 >= 4.2.0, PHP 5)
mb_regex_encoding — Set/Get character encoding for multibyte regex
Set/Get character encoding for a multibyte regex.
encodingThe encoding
parameter is the character encoding. If it is omitted, the internal character
encoding value will be used.
   If encoding is set, then 
   Returns TRUE on success or FALSE on failure. 
   In this case, the internal character encoding is NOT changed.
   If encoding is omitted, then 
   the current character encoding name for a multibyte regex is returned.
  
| Version | Description | 
|---|---|
| 5.6.0 | Default encoding is changed to UTF-8. It was EUC-JP Previously. |