Install php ssh2

1. Download and install OpenSSL. If you install OpenSSL via your distribution's packaging system be sure to install the development libraries as well. This will typically be a package named openssl-dev, openssl_devel, or some variation thereof.
    

2.Download (http://sourceforge.net/projects/libssh2/) and install libssh2. Typically this means executing the following command from the libssh2 source tree. ./configure && make all install.

NOTE: If you get an error related to an -lgssapi_krb5 change the LDFLAGS path like this:

export LDFLAGS="-L/usr/kerberos/lib -lkrb5 -lgssapi_krb5 -lpam"

and run the configure and make commands as well
    
3. Run the pear installer for PECL/ssh2: pear install ssh2.
download the tarball from PECL (http://pecl.php.net/package/ssh2).
From the root of the unpacked tarball, run: phpize && ./configure --with-ssh2 && make to generate ssh2.so (ssh2x/modules/).

4. Copy ssh2.so from the directory indicated by the build process to the location specified in your php.ini file under extension_dir.
 
5. Add extension=ssh2.so to your php.ini
   
6. Restart your webserver to reload your php.ini settings.

7.Enjoy!

FYI: unpacked command tar –zxvf filename.tgz