“xdigit”查询结果_在线百科全书查询
ctype_xdigit说明(参数返回值)范例ctype_xdigit(PHP4>=4.0.4,PHP5)ctype_xdigit--Checkforcharacter(s)representingahexadecimaldigit说明boolctype_xdigit(stringtext)Checksifallofthecharactersintheprovidedstring,text, 详情>>
