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Convert domain name to IDNA ASCII form.


idn_to_ascii

(PHP 5 >= 5.3.0, PECL intl >= 1.0.2, PECL idn >= 0.1)

idn_to_asciiConvert domain name to IDNA ASCII form.

Description

Procedural style

string idn_to_ascii ( string $domain [, int $options = 0 [, int $variant = INTL_IDNA_VARIANT_2003 [, array &$idna_info ]]] )

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

Parameters

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_*.

Return Values

Domain name encoded in ASCII-compatible form. or FALSE on failure

Changelog

Version Description
5.4.0/PECL 2.0.0b1 Added the parameters variant and idna_info; UTS #46 support.

Examples

Example #1 idn_to_ascii() example

<?php

echo idn_to_ascii('täst.de'); 

?>

The above example will output:

 xn--tst-qla.de 

See Also



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