Predefined Constants
The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
-
INPUT_POST
( integer )
-
POST variables.
-
INPUT_GET
( integer )
-
GET variables.
-
INPUT_COOKIE
( integer )
-
COOKIE variables.
-
INPUT_ENV
( integer )
-
ENV variables.
-
INPUT_SERVER
( integer )
-
SERVER variables.
-
INPUT_SESSION
( integer )
-
SESSION variables.
(not implemented yet)
-
INPUT_REQUEST
( integer )
-
REQUEST variables.
(not implemented yet)
-
FILTER_FLAG_NONE
( integer )
-
No flags.
-
FILTER_REQUIRE_SCALAR
( integer )
-
Flag used to require scalar as input
-
FILTER_REQUIRE_ARRAY
( integer )
-
Require an array as input.
-
FILTER_FORCE_ARRAY
( integer )
-
Always returns an array.
-
FILTER_NULL_ON_FAILURE
( integer )
-
Use NULL instead of FALSE on failure.
-
FILTER_VALIDATE_INT
( integer )
-
ID of "int" filter.
-
FILTER_VALIDATE_BOOLEAN
( integer )
-
ID of "boolean" filter.
-
FILTER_VALIDATE_FLOAT
( integer )
-
ID of "float" filter.
-
FILTER_VALIDATE_REGEXP
( integer )
-
ID of "validate_regexp" filter.
-
FILTER_VALIDATE_URL
( integer )
-
ID of "validate_url" filter.
-
FILTER_VALIDATE_EMAIL
( integer )
-
ID of "validate_email" filter.
-
FILTER_VALIDATE_IP
( integer )
-
ID of "validate_ip" filter.
-
FILTER_DEFAULT
( integer )
-
ID of default ("string") filter.
-
FILTER_UNSAFE_RAW
( integer )
-
ID of "unsafe_raw" filter.
-
FILTER_SANITIZE_STRING
( integer )
-
ID of "string" filter.
-
FILTER_SANITIZE_STRIPPED
( integer )
-
ID of "stripped" filter.
-
FILTER_SANITIZE_ENCODED
( integer )
-
ID of "encoded" filter.
-
FILTER_SANITIZE_SPECIAL_CHARS
( integer )
-
ID of "special_chars" filter.
-
FILTER_SANITIZE_EMAIL
( integer )
-
ID of "email" filter.
-
FILTER_SANITIZE_URL
( integer )
-
ID of "url" filter.
-
FILTER_SANITIZE_NUMBER_INT
( integer )
-
ID of "number_int" filter.
-
FILTER_SANITIZE_NUMBER_FLOAT
( integer )
-
ID of "number_float" filter.
-
FILTER_SANITIZE_MAGIC_QUOTES
( integer )
-
ID of "magic_quotes" filter.
-
FILTER_CALLBACK
( integer )
-
ID of "callback" filter.
-
FILTER_FLAG_ALLOW_OCTAL
( integer )
-
Allow octal notation (0[0-7]+) in "int" filter.
-
FILTER_FLAG_ALLOW_HEX
( integer )
-
Allow hex notation (0x[0-9a-fA-F]+) in "int" filter.
-
FILTER_FLAG_STRIP_LOW
( integer )
-
Strip characters with ASCII value less than 32.
-
FILTER_FLAG_STRIP_HIGH
( integer )
-
Strip characters with ASCII value greater than 127.
-
FILTER_FLAG_ENCODE_LOW
( integer )
-
Encode characters with ASCII value less than 32.
-
FILTER_FLAG_ENCODE_HIGH
( integer )
-
Encode characters with ASCII value greater than 127.
-
FILTER_FLAG_ENCODE_AMP
( integer )
-
Encode &.
-
FILTER_FLAG_NO_ENCODE_QUOTES
( integer )
-
Don't encode ' and ".
-
FILTER_FLAG_EMPTY_STRING_NULL
( integer )
-
(No use for now.)
-
FILTER_FLAG_ALLOW_FRACTION
( integer )
-
Allow fractional part in "number_float" filter.
-
FILTER_FLAG_ALLOW_THOUSAND
( integer )
-
Allow thousand separator (,) in "number_float" filter.
-
FILTER_FLAG_ALLOW_SCIENTIFIC
( integer )
-
Allow scientific notation (e, E) in
"number_float" filter.
-
FILTER_FLAG_SCHEME_REQUIRED
( integer )
-
Require scheme in "validate_url" filter.
-
FILTER_FLAG_HOST_REQUIRED
( integer )
-
Require host in "validate_url" filter.
-
FILTER_FLAG_PATH_REQUIRED
( integer )
-
Require path in "validate_url" filter.
-
FILTER_FLAG_QUERY_REQUIRED
( integer )
-
Require query in "validate_url" filter.
-
FILTER_FLAG_IPV4
( integer )
-
Allow only IPv4 address in "validate_ip" filter.
-
FILTER_FLAG_IPV6
( integer )
-
Allow only IPv6 address in "validate_ip" filter.
-
FILTER_FLAG_NO_RES_RANGE
( integer )
-
Deny reserved addresses in "validate_ip" filter.
-
FILTER_FLAG_NO_PRIV_RANGE
( integer )
-
Deny private addresses in "validate_ip" filter.