mb_eregi_replace Replace regular expression with multibyte support ignoring case stringmb_eregi_replace stringpattern stringreplace stringstring &warn.experimental.func; mb_ereg_replace scans string for matches to pattern, then replaces the matched text with replacement and returns the result string or &false; on error. Multibyte character can be used in pattern. The case will be ignored. The internal encoding or the character encoding specified in mb_regex_encoding will be used as character encoding. This function is supported in PHP 4.2.0 or higher. See also: mb_regex_encoding, mb_ereg_replace.