下列常量由此扩展定义,且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
INPUT_POST
(integer)
INPUT_GET
(integer)
INPUT_ENV
(integer)
INPUT_SERVER
(integer)
INPUT_SESSION
(integer)
INPUT_REQUEST
(integer)
FILTER_FLAG_NONE
(integer)
FILTER_REQUIRE_SCALAR
(integer)
FILTER_REQUIRE_ARRAY
(integer)
FILTER_FORCE_ARRAY
(integer)
FILTER_NULL_ON_FAILURE
(integer)
FILTER_VALIDATE_INT
(integer)
FILTER_VALIDATE_BOOLEAN
(integer)
FILTER_VALIDATE_FLOAT
(integer)
FILTER_VALIDATE_REGEXP
(integer)
FILTER_VALIDATE_URL
(integer)
FILTER_VALIDATE_EMAIL
(integer)
FILTER_VALIDATE_IP
(integer)
FILTER_VALIDATE_MAC
(integer)
FILTER_DEFAULT
(integer)
FILTER_UNSAFE_RAW
.
FILTER_UNSAFE_RAW
(integer)
FILTER_SANITIZE_STRING
(integer)
FILTER_SANITIZE_STRIPPED
(integer)
FILTER_SANITIZE_ENCODED
(integer)
FILTER_SANITIZE_SPECIAL_CHARS
(integer)
FILTER_SANITIZE_EMAIL
(integer)
FILTER_SANITIZE_URL
(integer)
FILTER_SANITIZE_NUMBER_INT
(integer)
FILTER_SANITIZE_NUMBER_FLOAT
(integer)
FILTER_SANITIZE_MAGIC_QUOTES
(integer)
FILTER_CALLBACK
(integer)
FILTER_FLAG_ALLOW_OCTAL
(integer)
FILTER_FLAG_ALLOW_HEX
(integer)
FILTER_FLAG_STRIP_LOW
(integer)
FILTER_FLAG_STRIP_HIGH
(integer)
FILTER_FLAG_ENCODE_LOW
(integer)
FILTER_FLAG_ENCODE_HIGH
(integer)
FILTER_FLAG_ENCODE_AMP
(integer)
FILTER_FLAG_NO_ENCODE_QUOTES
(integer)
FILTER_FLAG_EMPTY_STRING_NULL
(integer)
FILTER_FLAG_ALLOW_FRACTION
(integer)
FILTER_FLAG_ALLOW_THOUSAND
(integer)
FILTER_FLAG_ALLOW_SCIENTIFIC
(integer)
FILTER_FLAG_PATH_REQUIRED
(integer)
FILTER_FLAG_QUERY_REQUIRED
(integer)
FILTER_FLAG_IPV4
(integer)
FILTER_FLAG_IPV6
(integer)
FILTER_FLAG_NO_RES_RANGE
(integer)
FILTER_FLAG_NO_PRIV_RANGE
(integer)