idn_to_ascii

Convert domain name to IDNA ASCII form

说明

过程化风格

string idn_to_ascii ( string $domain [, int $options = IDNA_DEFAULT [, int $variant = INTL_IDNA_VARIANT_UTS46 [, array &$idna_info ]]] )

This function converts a Unicode domain name to an IDNA ASCII-compatible format.

参数

domain
The domain to convert, which must be UTF-8 encoded.

options
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_*.

返回值

The domain name encoded in ASCII-compatible form, 或者在失败时返回 FALSE

更新日志

版本说明
7.4.0The default value of variant is now INTL_IDNA_VARIANT_UTS46 instead of the deprecated INTL_IDNA_VARIANT_2003.
7.2.0INTL_IDNA_VARIANT_2003 has been deprecated; use INTL_IDNA_VARIANT_UTS46 instead.
5.4.0/PECL 2.0.0b1Added the parameters variant and idna_info; UTS #46 support (requires ICU ≥ 4.6).

范例

示例 #1 idn_to_ascii example

<?php

echo idn_to_ascii('täst.de'); 

?>

以上例程会输出:

xn--tst-qla.de

参见

  • idn_to_utf8

idn_to_utf8

Convert domain name from IDNA ASCII to Unicode

说明

过程化风格

string idn_to_utf8 ( string $domain [, int $options = IDNA_DEFAULT [, int $variant = INTL_IDNA_VARIANT_UTS46 [, array &$idna_info ]]] )

This function converts a Unicode domain name from an IDNA ASCII-compatible format to plain Unicode, encoded in UTF-8.

参数

domain
Domain to convert in an IDNA ASCII-compatible format.

options
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_*.

返回值

The domain name in Unicode, encoded in UTF-8, 或者在失败时返回 FALSE

更新日志

版本说明
7.4.0The default value of variant is now INTL_IDNA_VARIANT_UTS46 instead of the deprecated INTL_IDNA_VARIANT_2003.
7.2.0INTL_IDNA_VARIANT_2003 has been deprecated; use INTL_IDNA_VARIANT_UTS46 instead.
5.4.0/PECL 2.0.0b1Added the parameters variant and idna_info; UTS #46 support (requires ICU ≥ 4.6).

范例

示例 #1 idn_to_utf8 example

<?php

echo idn_to_utf8('xn--tst-qla.de'); 

?>

以上例程会输出:

täst.de

参见

  • idn_to_ascii

目录

  • idn_to_ascii — Convert domain name to IDNA ASCII form
  • idn_to_utf8 — Convert domain name from IDNA ASCII to Unicode