| FILTER_VALIDATE_INT |
"int" |
min_range
,
max_range
|
FILTER_FLAG_ALLOW_OCTAL,
FILTER_FLAG_ALLOW_HEX
|
Validates value as integer, optionally from the specified range. |
| FILTER_VALIDATE_BOOLEAN |
"boolean" |
|
FILTER_NULL_ON_FAILURE
|
Returns TRUE for "1", "true", "on" and "yes".
Returns FALSE otherwise.
If FILTER_NULL_ON_FAILURE is set, FALSE is
returned only for "0", "false", "off", "no", and "", and
NULL is returned for all non-boolean values.
|
| FILTER_VALIDATE_FLOAT |
"float" |
decimal
|
FILTER_FLAG_ALLOW_THOUSAND
|
Validates value as float. |
| FILTER_VALIDATE_REGEXP |
"validate_regexp" |
regexp
|
|
Validates value against regexp
, a
Perl-compatible regular expression.
|
| FILTER_VALIDATE_URL |
"validate_url" |
|
FILTER_FLAG_PATH_REQUIRED,
FILTER_FLAG_QUERY_REQUIRED
|
Validates value as URL, optionally with required components. |
| FILTER_VALIDATE_EMAIL |
"validate_email" |
|
|
Validates value as e-mail. |
| FILTER_VALIDATE_IP |
"validate_ip" |
|
FILTER_FLAG_IPV4,
FILTER_FLAG_IPV6,
FILTER_FLAG_NO_PRIV_RANGE,
FILTER_FLAG_NO_RES_RANGE
|
Validates value as IP address, optionally only IPv4 or IPv6 or not
from private or reserved ranges.
|
| FILTER_SANITIZE_STRING |
"string" |
|
FILTER_FLAG_NO_ENCODE_QUOTES,
FILTER_FLAG_STRIP_LOW,
FILTER_FLAG_STRIP_HIGH,
FILTER_FLAG_ENCODE_LOW,
FILTER_FLAG_ENCODE_HIGH,
FILTER_FLAG_ENCODE_AMP
|
Strip tags, optionally strip or encode special characters. |
| FILTER_SANITIZE_STRIPPED |
"stripped" |
|
|
Alias of "string" filter. |
| FILTER_SANITIZE_ENCODED |
"encoded" |
|
FILTER_FLAG_STRIP_LOW,
FILTER_FLAG_STRIP_HIGH,
FILTER_FLAG_ENCODE_LOW,
FILTER_FLAG_ENCODE_HIGH
|
URL-encode string, optionally strip or encode special characters. |
| FILTER_SANITIZE_SPECIAL_CHARS |
"special_chars" |
|
FILTER_FLAG_STRIP_LOW,
FILTER_FLAG_STRIP_HIGH,
FILTER_FLAG_ENCODE_HIGH
|
HTML-escape '"<>& and characters with
ASCII value less than 32, optionally strip or encode other special
characters.
|
| FILTER_UNSAFE_RAW |
"unsafe_raw" |
|
FILTER_FLAG_STRIP_LOW,
FILTER_FLAG_STRIP_HIGH,
FILTER_FLAG_ENCODE_LOW,
FILTER_FLAG_ENCODE_HIGH,
FILTER_FLAG_ENCODE_AMP
|
Do nothing, optionally strip or encode special characters. |
| FILTER_SANITIZE_EMAIL |
"email" |
|
|
Remove all characters except letters, digits and
!#$%&'*+-/=?^_`{|}~@.[].
|
| FILTER_SANITIZE_URL |
"url" |
|
|
Remove all characters except letters, digits and
$-_.+!*'(),{}|\\^~[]`<>#%";/?:@&=.
|
| FILTER_SANITIZE_NUMBER_INT |
"number_int" |
|
|
Remove all characters except digits, plus and minus sign.
|
| FILTER_SANITIZE_NUMBER_FLOAT |
"number_float" |
|
FILTER_FLAG_ALLOW_FRACTION,
FILTER_FLAG_ALLOW_THOUSAND,
FILTER_FLAG_ALLOW_SCIENTIFIC
|
Remove all characters except digits, +- and
optionally .,eE.
|
| FILTER_SANITIZE_MAGIC_QUOTES |
"magic_quotes" |
|
|
Apply addslashes(). |
| FILTER_CALLBACK |
"callback" |
callback function or method |
|
Call user-defined function to filter data. |
