Ctype函数列表 ctype_alnum - Check for alphanumeric character(s) ctype_alpha - Check for alphabetic character(s) ctype_cntrl - Check for control character(s) ctype_digit - Check for numeric character(s) ctype_graph - Check for any printable character(s) except space ctype_lower - Check for lowercase character(s) ctype_print - Check for printable character(s) ctype_punct - Check for any printable character which is not whitespace or an alphanumeric character ctype_space - Check for whitespace character(s) ctype_upper - Check for uppercase character(s) ctype_xdigit - Check for character(s) representing a hexadecimal digit ctype_alnum ctype_alpha ctype_cntrl ctype_digit ctype_graph ctype_lower ctype_print ctype_punct ctype_space ctype_upper ctype_xdigit PHP MySQL HTML CSS JavaScript MSSQL AJAX .NET JSP Linux Mac ASP 服务器 SQL jQuery C# C++ java Android IOS oracle MongoDB SQLite wamp 交通频道