ctype_xdigit      119 ext/ctype/ctype.c 	PHP_FE(ctype_xdigit,	arginfo_ctype_xdigit)
ctype_xdigit      166 ext/pcre/pcrelib/dftables.c   ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word,
ctype_xdigit      660 ext/pcre/pcrelib/pcre_compile.c       while ((digitab[*pt] & ctype_xdigit) != 0)
ctype_xdigit      689 ext/pcre/pcrelib/pcre_compile.c     while (i++ < 2 && (digitab[ptr[1]] & ctype_xdigit) != 0)
ctype_xdigit      126 ext/pcre/pcrelib/pcre_maketables.c   if (isxdigit(i)) x += ctype_xdigit;