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https://github.com/frankiejarrett/prevent-concurrent-logins

Prevents users from being logged into the same WordPress site from multiple places.
https://github.com/frankiejarrett/prevent-concurrent-logins

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Prevents users from being logged into the same WordPress site from multiple places.

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# Prevent Concurrent Logins

![Banner](assets/banner-1544x500.png)
Prevents users from staying logged into the same account from multiple places.

**Contributors:** [fjarrett](https://profiles.wordpress.org/fjarrett)
**Tags:** [login](https://wordpress.org/plugins/tags/login), [users](https://wordpress.org/plugins/tags/users), [membership](https://wordpress.org/plugins/tags/membership), [security](https://wordpress.org/plugins/tags/security), [sensei](https://wordpress.org/plugins/tags/sensei), [sessions](https://wordpress.org/plugins/tags/sessions), [woocommerce](https://wordpress.org/plugins/tags/woocommerce)
**Requires at least:** 4.1
**Tested up to:** 4.6
**Stable tag:** 0.4.0
**License:** [GPL-2.0](https://www.gnu.org/licenses/gpl-2.0.html)

[![Build Status](https://travis-ci.org/fjarrett/prevent-concurrent-logins.svg?branch=master)](https://travis-ci.org/fjarrett/prevent-concurrent-logins)

## Description ##

**Did you find this plugin helpful? Please consider [leaving a 5-star review](https://wordpress.org/support/view/plugin-reviews/prevent-concurrent-logins).**

* Deters members/subscribers from sharing their accounts with others
* Hardens security by destoying old sessions automatically
* Prompts old sessions to login again if they want to continue
* Ideal for membership sites and web applications

**Important:** If you plan to network-activate this plugin on a multisite network, please install the [Proper Network Activation](https://wordpress.org/plugins/proper-network-activation/) plugin _beforehand_.

**Development of this plugin is done [on GitHub](https://github.com/fjarrett/prevent-concurrent-logins). Pull requests welcome. Please see [issues reported](https://github.com/fjarrett/prevent-concurrent-logins/issues) there before going to the plugin forum.**

## Frequently Asked Questions ##

### Where are the options for this plugin? ###
This plugin does not have a settings page. Simply put, I don't like bloating my plugins with a bunch of options.

Instead, I try to develop functionality using the 80/20 principle so that for 80% of use cases you all you need to do is activate the plugin and it "just works".

For the other 20% of you who want things to behave differently there are hooks available in the plugin so you can customize default behaviors.

### Can I still allow concurrent logins for certain users? ###
Yes, simply add this code to your theme's `functions.php` file or as an [MU plugin](http://codex.wordpress.org/Must_Use_Plugins):

```php
function my_pcl_whitelist_user_ids( $prevent, $user_id ) {

$whitelist = array( 1, 2, 3 ); // Provide an array of whitelisted user IDs

return in_array( $user_id, $whitelist ) ? false : $prevent;

}
add_filter( 'pcl_prevent_concurrent_logins', 'my_pcl_whitelist_user_ids', 10, 2 );
```

Or this code to bypass users with certain roles:

```php
function my_pcl_whitelist_roles( $prevent, $user_id ) {

$whitelist = array( 'administrator', 'editor' ); // Provide an array of whitelisted user roles

$user = get_user_by( 'id', absint( $user_id ) );

$roles = ! empty( $user->roles ) ? $user->roles : array();

return array_intersect( $roles, $whitelist ) ? false : $prevent;

}
add_filter( 'pcl_prevent_concurrent_logins', 'my_pcl_whitelist_roles', 10, 2 );
```

## Changelog ##

### 0.4.0 - October 16, 2015 ###
* Official support for WordPress 4.3

Props [fjarrett](https://github.com/fjarrett)

### 0.3.0 - May 4, 2015 ###
* Action hooks now available after sessions are destroyed for logging purposes [(#4)](https://github.com/fjarrett/prevent-concurrent-logins/issues/4)

Props [fjarrett](https://github.com/fjarrett)

### 0.2.0 - January 28, 2015 ###
* Destroy old sessions for all users upon activation

Props [fjarrett](https://github.com/fjarrett), [chuckreynolds](https://github.com/chuckreynolds)

### 0.1.1 - January 2, 2015 ###
* Added filter to allow certain users to have concurrent sessions when necessary

Props [fjarrett](https://github.com/fjarrett), [nutsandbolts](https://github.com/nutsandbolts)

### 0.1.0 - December 31, 2014 ###
* Initial release

Props [fjarrett](https://github.com/fjarrett)