Codeigniter libraries

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Codeigniter libraries : Codeigniter libraries provides you rich functionality with ready made libraries. You can also create your own library.

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Using Codeigniter libraries

$this->load->library('library_name');

For Example If We Need Form validation library

$this->load->library('form_validation');

Load Multiple Codeigniter libraries

$this->load->library(array('form_validation','email'));

You Can Also Auto-load Libraries

Go to application/config/autoload.php
Now go to the below lines and add the library name you want to automatically load.

$autoload['libraries'] = array('email','form_validation');