PHP Tutorial String Type

Type

1. Check for alphabetic character(s) with ctype_alpha in PHP
2. Check for alphanumeric character(s) with ctype_alnum in PHP
3. Check for any printable character(s) except space with ctype_graph in PHP
4. Check for any printable character which is not whitespace or an alphanumeric character with ctype_punct in PHP
5. Check for character(s) representing a hexadecimal digit with ctype_xdigit in PHP
6. Check for control character(s) with ctype_cntrl in PHP
7. Check for lowercase character(s) with ctype_lower in PHP
8. Check for numeric character(s) with ctype_digit in PHP
9. Check for printable character(s) with ctype_print in PHP
10. Check for uppercase character(s) with ctype_upper in PHP
11. Check for whitespace character(s) with ctype_space in PHP