PHP_UNICODE_CASE_LOWER 1573 ext/mbstring/mbstring.c REGISTER_LONG_CONSTANT("MB_CASE_LOWER", PHP_UNICODE_CASE_LOWER, CONST_CS | CONST_PERSISTENT); PHP_UNICODE_CASE_LOWER 3195 ext/mbstring/mbstring.c newstr = php_unicode_convert_case(PHP_UNICODE_CASE_LOWER, str, (size_t) str_len, &ret_len, from_encoding TSRMLS_CC); PHP_UNICODE_CASE_LOWER 298 ext/mbstring/php_unicode.c case PHP_UNICODE_CASE_LOWER: