base_url config from 2.x breaking change than 2.1.x

base_url config from 2.x breaking change than 2.1.x - Printable Version

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base_url config from 2.x breaking change than 2.1.x - mrlai_1102 - 11-20-2015

I'm using old 2.1.x version, config file set as below

PHP Code:
$config['base_url']    = ''; 

In lastest 2.x version, when i set it is empty, it only use ip address in my url instead of domain name with older version
Along time i dont work with PHP and how we need set this config value instead of default
king

RE: base_url config from 2.x breaking change than 2.1.x - kenjis - 11-20-2015

To avoid Host header injections.
See http://www.codeigniter.com/userguide2/installation/upgrade_226.html