This PHP CODE snippets will change your database engine from  InnoDB to MyISAM, this is useful when you need to save time manually changing all the tables from InnoDB to MyISAM, for example when a CMS populates a database with tables that use InnoDB but you cannot run on your web host because InnoDB is disabled and MyISAM is your remaining options.

Commonly on a shared hosting environments, web host disabled InnoDB because it requires more disk space and eats more Server resources and Memory than MyISAM. To use this scripts you need to change the variables:

dbServerName // Database server, commonly use value is localhost

dbUserName // Database User, the one with priveleges to your database

dbPassword // Password of the Database User

DatabaseName // The database you want to convert from InnoDB to MyISAM

Here how to install node.js into you CentOS server. Login to your centOS server using SSH client such as putty and type the following commands in shell.

First log-in to your server through ssh access then follow this command or type these command in shell

wget http://ftp.sunet.se/pub/gnu/gmp/gmp-4.2.2.tar.bz2
tar -xjvf gmp-4.2.2.tar.bz2
cd gmp-4.2.2
./configure
make
make check
make install

nano /var/cpanel/easy/apache/rawopts/all_php5

add or type the following 

--with-gmp

then recompile PHP with default settings

/scripts/easyapache

save and compile, follow the instructions until the scripts finish recompiling the PHP.
done!

This command has been successfully tested on Debian, Ubuntu, CentOS and should work for most *NIX systems.

The last line is for Drush to auto download the required library. If it displays a list of drush command, it means drush was installed successfully.
Some machines might not have the right folders created, so either update the paths above to match your environment, or create them beforehand using this command.