So, first install the necessary packages:

yum install gcc php-devel php-pear openssl openssl-devel httpd-devel make

 Now install extensions libssh2, the latest version of which can be found at libssh2.org. At the moment it libssh2-1.4.3.

wget http://libssh2.org/download/libssh2-1.4.3.tar.gz
tar vxzf libssh2-1.4.3.tar.gz
cd libssh2-1.4.3
./configure
make
make install

Next, put the package php-ssh2, which take away from the page http://pecl.php.net/package/ssh2. The latest version is now ssh2-0.12.

wget http://pecl.php.net/get/ssh2-0.12.tgz
tar vxzf ssh2-0.12.tgz
cd ssh2-0.12
phpize
./configure --with-ssh2
make
make install

Check that the folder /usr/lib64/php/modules we have a file ssh2.so.

If all is well, then create a file folder /etc/php.d ssh2.ini and enter into it:

extension=ssh2.so

Now restart the web server command:

service httpd restart

Finally check whether normally have to install the module:

php -m | grep ssh2

It works :)