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CI_User_agent::referrer()

referrer()

Returns:	Detected referrer or an empty string
Return type:	string

The referrer, if the user agent was referred from another site. Typically you’ll test for this as follows:

if ($this->agent->is_referral())
{
        echo $this->agent->referrer();
}

Links:

http://www.codeigniter.com/user_guide/libraries/user_agent.html#CI_User_agent::referrer

doc_CodeIgniter

2016-10-15 16:32:06

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