Validate filters
| ID | Name | Options | Flags | Description |
|---|---|---|---|---|
FILTER_VALIDATE_BOOLEAN,
FILTER_VALIDATE_BOOL
|
"boolean" |
default
|
FILTER_NULL_ON_FAILURE
|
Returns
If String values are trimmed using trim() before comparison. |
FILTER_VALIDATE_DOMAIN |
"validate_domain" |
default
|
FILTER_FLAG_HOSTNAME,
FILTER_NULL_ON_FAILURE
|
Validates whether the domain name label lengths are valid.
Validates domain names against RFC 1034, RFC 1035, RFC 952,
RFC 1123, RFC 2732, RFC 2181, and RFC 1123. Optional flag
|
FILTER_VALIDATE_EMAIL |
"validate_email" |
default
|
FILTER_FLAG_EMAIL_UNICODE,
FILTER_NULL_ON_FAILURE
|
Validates whether the value is a valid e-mail address.
In general, this validates e-mail addresses against the |
FILTER_VALIDATE_FLOAT |
"float" |
default,
decimal,
min_range,
max_range
|
FILTER_FLAG_ALLOW_THOUSAND,
FILTER_NULL_ON_FAILURE
|
Validates value as float, optionally from the specified range, and converts to float on success. String values are trimmed using trim() before comparison. |
FILTER_VALIDATE_INT |
"int" |
default,
min_range,
max_range
|
FILTER_FLAG_ALLOW_OCTAL,
FILTER_FLAG_ALLOW_HEX,
FILTER_NULL_ON_FAILURE
|
Validates value as integer, optionally from the specified range, and converts to int on success. String values are trimmed using trim() before comparison. |
FILTER_VALIDATE_IP |
"validate_ip" |
default
|
FILTER_FLAG_IPV4,
FILTER_FLAG_IPV6,
FILTER_FLAG_NO_PRIV_RANGE,
FILTER_FLAG_NO_RES_RANGE,
FILTER_NULL_ON_FAILURE
|
Validates value as IP address, optionally only IPv4 or IPv6 or not from private or reserved ranges. |
FILTER_VALIDATE_MAC |
"validate_mac_address" |
default
|
FILTER_NULL_ON_FAILURE
|
Validates value as MAC address. |
FILTER_VALIDATE_REGEXP |
"validate_regexp" |
default,
regexp
|
FILTER_NULL_ON_FAILURE
|
Validates value against regexp, a
Perl-compatible regular expression.
|
FILTER_VALIDATE_URL |
"validate_url" |
default
|
FILTER_FLAG_SCHEME_REQUIRED,
FILTER_FLAG_HOST_REQUIRED,
FILTER_FLAG_PATH_REQUIRED,
FILTER_FLAG_QUERY_REQUIRED,
FILTER_NULL_ON_FAILURE
|
Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396), optionally with required components. Beware a valid URL may not specify the HTTP protocol http:// so further validation may be required to determine the URL uses an expected protocol, e.g. ssh:// or mailto:. Note that the function will only find ASCII URLs to be valid; internationalized domain names (containing non-ASCII characters) will fail. |
Note:
When
defaultis set to option,default's value is used if value is not validated.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
The FILTER_FLAG_SCHEME_REQUIRED and
FILTER_FLAG_HOST_REQUIRED flags for the
FILTER_VALIDATE_URL filter have been removed.
The scheme and host are (and have been) always required.
|
| 8.0.0 |
Added FILTER_VALIDATE_BOOL as an alias for FILTER_VALIDATE_BOOLEAN.
Using FILTER_VALIDATE_BOOL is preferred.
|
| 7.4.0 |
Added min_range and max_range
options for FILTER_VALIDATE_FLOAT.
|
| 7.0.0 |
Added FILTER_FLAG_HOSTNAME and FILTER_VALIDATE_DOMAIN.
|
