PHP intl extension doesn't work

Question

I've installed the intl extension via PECL on Debian Squeeze. But when I put extension=intl.so in my php.ini file and restart Apache, it loads CP to about 99% and nothing works. The only way to make the server work again is to remove the extension=intl.so line from php.ini file. Why?

Apache error log is:

[Wed Nov 28 23:09:59 2012] [notice] suEXEC mechanism enabled (wrapper: /usr/lib/apache2/suexec) PHP Warning: Function registration failed - duplicate name - idn_to_ascii in Unknown on line 0 PHP Warning: Function registration failed - duplicate name - idn_to_utf8 in Unknown on line 0 PHP Warning: idn: Unable to register functions, unable to load in Unknown on line 0

Answer 1

function names need to be unique for obvious reasons.

The (recommended) extension intl provides the functions idn_to_ascii and idn_to_utf8 (along with other helpful functions), as well as the pecl extension idn (source)

idn is in (early) beta since 2009 and no longer developed.

How do I fix that??

What you have to do is to uninstall your idn extension

apt-get remove php-pecl-idn

or ( depends how this was installed )

pecl uninstall idn

or simply comment the the extension in your config

; extension=idn.so

then restartart your apache