How to prevent codeiginter to create databases session entries when a bot visit the site.04.06.14

create the file  application/libraries/MY_Session.php

overwrite the function sess_create()
change this if condition:

if ($this->sess_use_database === TRUE && $this->CI->agent->is_robot() === FALSE)

example:
<?php
class MY_Session extends CI_Session {

function sess_create()
        {
                $sessid = '';

while (strlen($sessid) < 32)
                {
        	        $sessid .= mt_rand(0, mt_getrandmax());
        	}

// To make the session ID even more secure we'll combine it with the user's IP                                                                                                                     
        	$sessid .= $this->CI->input->ip_address();

$this->userdata = array(
        	        		                'session_id'    => md5(uniqid($sessid, TRUE)),
        	        		                'ip_address'    => $this->CI->input->ip_address(),
        	        		                'user_agent'    => substr($this->CI->input->user_agent(), 0, 120),
        	        		                'last_activity' => $this->now,
        	        		                'user_data'             => ''
        	        		                );

// Save the data to the DB if needed                                                                                                                                                               
        	if ($this->sess_use_database === TRUE && $this->CI->agent->is_robot() === FALSE)
		{
                        $this->CI->db->query($this->CI->db->insert_string($this->sess_table_name, $this->userdata));
                }

// Write the cookie                                                                                                                                                                                
		$this->_set_cookie();
	}

}

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How to prevent codeiginter to create databases session entries when a bot visit the site.04.06.14

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