mb_eregi Regular expression match ignoring case with multibyte support &reftitle.description; intmb_eregi stringpattern stringstring arrayregs Executes the case insensitive regular expression match with multibyte support. &reftitle.parameters; pattern The regular expression pattern. string The string being searched. regs Contains a substring of the matched string. &reftitle.returnvalues; Executes the regular expression match with multibyte support, and returns 1 if matches are found. If the optional regs parameter was specified, the function returns the byte length of matched part, and the array regs will contain the substring of matched string. The function returns 1 if it matches with the empty string. If no matches are found or an error happens, &false; will be returned. &reftitle.notes; ¬e.mbstring.encoding.internal; &reftitle.seealso; mb_regex_encoding mb_ereg