Ctype 函数

ctype_alnum — 检测字母数字式字符
ctype_alpha — 检测字母字符
ctype_cntrl — 检测控制字符
ctype_digit — 检测数字字符
ctype_graph — 检测除空格外的任何打印字符
ctype_lower — 检测小写字符
ctype_print — 检测可打印字符
ctype_punct — 检测可打印的字符是不是不包含空白、数字和字母
ctype_space — 检测空白字符
ctype_upper — 检测大写字符
ctype_xdigit — 检测字符是否只包含十六进制字符

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Ctype 函数

目录