(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.2, PHP 7, PECL idn >= 0.1)
idn_to_ascii — Convert domain name to IDNA ASCII form.
Procedural style
$domain
[, int $options = 0
[, int $variant = INTL_IDNA_VARIANT_2003
[, array &$idna_info
]]] )This function converts a Unicode domain name to an IDNA ASCII-compatible format.
domainThe domain to convert, which must be UTF-8 encoded.
optionsConversion options - combination of IDNA_* constants (except IDNA_ERROR_* constants).
variant
Either INTL_IDNA_VARIANT_2003 for IDNA 2003 or
INTL_IDNA_VARIANT_UTS46 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_*.
The domain name encoded in ASCII-compatible form, or FALSE on failure
| Version | Description |
|---|---|
| 5.4.0/PECL 2.0.0b1 |
Added the parameters variant and
idna_info; UTS #46 support.
|
Example #1 idn_to_ascii() example
<?php
echo idn_to_ascii('täst.de');
?>
The above example will output:
xn--tst-qla.de