srcstr            270 ext/mbstring/php_unicode.c MBSTRING_API char *php_unicode_convert_case(int case_mode, const char *srcstr, size_t srclen, size_t *ret_len,
srcstr            284 ext/mbstring/php_unicode.c 	unicode = php_mb_convert_encoding(srcstr, srclen, "UCS-4BE", src_encoding, &unicode_len);
srcstr            106 ext/mbstring/php_unicode.h MBSTRING_API char *php_unicode_convert_case(int case_mode, const char *srcstr, size_t srclen, size_t *retlen,