Installing/enabling PHP Pecl Intl extension on CentOs 5

Question

Original question:

I'm having trouble installing the PHP Pecl Intl extension on my CentOs 5 machine.

After installing both icu and libicu with the following commands:

$ yum install icu
$ yum install libicu

I tried to install the Intl extension like so:

$ /usr/bin/pecl install intl

I selected to search for the default location for the ICU libraries and header files. It ends up crashing like this:

checking whether to enable internationalization support... yes, shared
checking for icu-config... no
checking for location of ICU headers and libraries... not found
configure: error: Unable to detect ICU prefix or no failed. Please verify ICU install prefix and make sure icu-config works.
ERROR: `/tmp/pear/temp/intl/configure --with-icu-dir=DEFAULT' failed

update

After successfully installing the development version of icu as suggested by RusAlex (thanks RusAlex) like so:

$ yum install libicu-devel

I ran into a new problem which I also encountered locally the following command:

$ /usr/bin/pecl install intl

now produces this error:

 /private/tmp/pear/temp/intl/collator/collator_class.c:92: error: duplicate 'static'
 /private/tmp/pear/temp/intl/collator/collator_class.c:96: error: duplicate 'static'
 /private/tmp/pear/temp/intl/collator/collator_class.c:101: error: duplicate 'static'
 /private/tmp/pear/temp/intl/collator/collator_class.c:107: error: duplicate 'static'
 make: *** [collator/collator_class.lo] Error 1
 ERROR: `make' failed

It appears to have something to do with PHP 5.3 being bundled with Intl already. But how can I enable this extension, if I look in my PHP Info than I cannot find any reference to it...

Answer 1

You are correct, you can't install the PECL package because as of PHP 5.3 Intl is part of PHP:

Ref: http://pecl.php.net/bugs/bug.php?id=16031

If you installed PHP using YUM, you can just pull down the intl package:

> yum list php*intl

> yum install

Answer 2

seems like you need to install icu-dev or icu-devel package or something similar.

You need development package.

Answer 3

do you have gcc, gcc-cpp, and gcc-c++ installed... At least that was one of my issues during install - http://itblogspot.net/php-install-intl

Answer 4

sudo yum install libicu
sudo yum install libicu-devel.x86_64
sudo /usr/bin/pecl install intl
sudo echo 'extension=intl.so' >> /etc/php.ini

And you are good to go. And better enter the extension=intl.so manually to php.ini or even more elegant create a new .ini file in the /etc/php.d/ directory.

Answer 5

This worked for me on Centos 5.6

yum install gcc gcc-cpp gcc-c++ After that all errors to do with intl disappeared

Answer 6

① /usr/bin/pecl install intl

② Search log "checking for icu-config... /usr/bin/icu-config*".
You'll need a path of the directory which has "/bin/icu-config" later.

③ Download php wget http://us2.php.net/get/php-5.3.6.tar.gz/from/jp.php.net/mirror
tar xvzf php-5.3.6.tar.gz
cd php-5.3.6/ext/intl/

④ compile and install intl module. phpize
./configure --enable-intl --with-icu-dir=/usr
make
make test
sudo make install.

⑤ Finally, append "extension=intl.so" into php.ini.