pecl安装xdebug中的错误版本

I am trying to install xdebug with pecl install xdebug on PHP 5.5.27

According to PECL website https://pecl.php.net/package/xdebug latest stable version of xdebug is 2.3.3

However command above is trying to install xdebug 2.3.2

What is wrong with this?

You need to download it manually:

wget http://xdebug.org/files/xdebug-2.3.3.tgz
tar -xvzf xdebug-2.3.3.tgz
cd xdebug-2.3.3
phpize
./configure
make

If you are running a tool like homestead you won't need further steps and do not forget to take backup before steps below.

cp modules/xdebug.so /usr/lib/php5/20131226
Update /etc/php5/fpm/php.ini
zend_extension = /usr/lib/php5/20131226/xdebug.so

Restart the webserver