(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.
过程化风格
$domain
[, int $options
= 0
[, int $variant
= INTL_IDNA_VARIANT_2003
[, array &$idna_info
]]] )This function converts Unicode domain name to IDNA ASCII-compatible format.
domain
Domain to convert. In PHP 5 must be UTF-8 encoded.
options
Conversion 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_*.
Domain name encoded in ASCII-compatible form. 或者在失败时返回 FALSE
版本 | 说明 |
---|---|
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('t?st.de');
?>
以上例程会输出:
xn--tst-qla.de