idn_to_ascii
Convert domain name to IDNA ASCII form
Description
Procedural style
stringfalse idn_to_ascii(
string $domain
,
int $flags
= IDNA_DEFAULT
,
int $variant
= INTL_IDNA_VARIANT_UTS46
,
array &$idna_info
= null
)
Parameters
-
domain
-
The domain to convert, which must be UTF-8 encoded.
-
flags
-
Conversion options - combination of IDNA_* constants
(except IDNA_ERROR_* constants).
-
variant
-
Either INTL_IDNA_VARIANT_2003
(deprecated as of PHP 7.2.0) for IDNA 2003 or
INTL_IDNA_VARIANT_UTS46
(only available as of ICU 4.6) for UTS #46.
-
idna_info
-
This parameter can be used only if
INTL_IDNA_VARIANT_UTS46
was used for
variant
. In that case, it will be filled with an
array with the keys 'result'
, the possibly illegal
result of the transformation,
'isTransitionalDifferent'
, a boolean indicating
whether the usage of the transitional mechanisms of UTS #46 either has
or would have changed the result and 'errors'
,
which is an int representing a bitset of the error
constants IDNA_ERROR_*.
Return Values
The domain name encoded in ASCII-compatible form, or false
on failure
Examples
Example #1 idn_to_ascii example
<?php
echo idn_to_ascii('täst.de');
?>
The above example will output: