idn_to_ascii

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

idn_to_ascii — Convert domain name to IDNA ASCII form.

Beschreibung

Prozeduraler Stil

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.

Parameter-Liste

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_*.

Rückgabewerte

Domain name encoded in ASCII-compatible form. Im Fehlerfall wird FALSE zurückgegeben.

Changelog

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

Beispiele

Beispiel #1 idn_to_ascii() example


<?php

echo idn_to_ascii('täst.de'); 

?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

xn--tst-qla.de

Siehe auch

idn_to_unicode() - Alias von idn_to_utf8

add a note User Contributed Notes idn_to_ascii

Eman 11-Nov-2010 04:57


With PHP 5.3 I started to recieve 



Fatal error: Only variables can be passed by reference 



when trying to call idn_to_ascii with second optional parameter (IDNA_DEFAULT). 

Moreover these IDNA_* constants are seem to be undefined in PHP 5.3. + PECL idn 0.0.2



When I tried to uninstall PECL idn and install PECL intl (1.1.1) i recieved this:



/tmp/pear/temp/intl/collator/collator_class.c:92: error: duplicate ‘static’

/tmp/pear/temp/intl/collator/collator_class.c:96: error: duplicate ‘static’

/tmp/pear/temp/intl/collator/collator_class.c:101: error: duplicate ‘static’

/tmp/pear/temp/intl/collator/collator_class.c:107: error: duplicate ‘static’

make: *** [collator/collator_class.lo] Error 1



So probably compiling PHP 5.3. from sources with --enable-intl will help, but it only means that PHP 5.3. intl version differs from the one available at PECL, which isn't good, I think.



I've made my code working again by giving second idn_to_ascii parameter as simple integer variable (with value 0), but something bad is going on here and i will not be surprised if it'll break again after another PHP update...

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