XVI. Character type functions
| 주의 |
This extension is
EXPERIMENTAL. The behaviour of this extension,
including the names of its functions, and anything else documented
about this extension may change in a future release of PHP without
notice. Be warned and use this extension at your own
risk. |
These functions check whether a character or string
falls into a certain character class according to the i
current locale.
When called with an integer argument theese functions
behave exactly like their C counterparts.
When called with a string argument they will check
every character in the string and will only return
TRUE if every character in the string matches the
requested criteria.
Passing anything else but a string or integer will
return FALSE immediately.
| 주의 |
These functions are new as of PHP 4.0.4 and might change their
name in the near future. Suggestions are to change them to
ctype_issomething() instead of
ctype_somthing() or even to make them part of
ext/standard and use their original C-names,
although this would possibly lead to further confusion regarding
the isset()
vs. is_sometype() problem.
|
- 차례
- 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
cyrus_unbind
