Magento background Unable to sign in the solution two methods _php instance

Magento background failed to login solution

Workaround One:

This is a cookie problem, using a non-IE core browser such as Firefox to solve this problem, although the way the browser handles cookies is similar but not 100% identical, Magento Other versions have this problem.

The way to fix this problem in detail is to navigate to: app/code/core/mage/core/model/session/abstract/varien.php.

Around 70 lines you can see something like this:

Set Session cookie params
/* Code Agriculture Tutorial http://www.manongjc.com * *
session_set_cookie_params (
$this-> GetCookie ()->getlifetime (),
$this->getcookie ()->getpath ()//comments dropped or deleted

Workaround Two:

No localhost landing,

To your IP address login: For example http://192.168.1.100/plus background address,

You can also point to the other addresses in Apache,

This problem does not normally occur on the server, and does not need to be modified.

magento1.9 Backstage Unable to login problem

Open magento/app/code/core/mage/core/model/session/abstract/varien.php

Find the following code, comment out $cookieparams[' domain ' = $cookie->getdomain (); it's OK.

if (Isset ($cookieParams [' domain ']) {
$cookieParams [' domain '] = $cookie->getdomain ();
}

The results are as follows

if (Isset ($cookieParams [' domain ']) {
//$cookieParams [' domain '] = $cookie->getdomain ();
}

But after doing this, there was an error, so I commented out the following paragraph

if (Isset ($cookieParams [' domain '])) {
//$cookieParams [' domain '] = $cookie->getdomain ();
// }

Thank you for reading, I hope to help you, thank you for your support for this site!