How to get logged in user information in WordPress for personalized results

Recently, we showed you how to create a personalized experience for users by allowing users to save their favorite posts in a personalized library. You can take personalized results to another level by using their names in some places (i.e., welcome screens). Fortunately, WordPress makes it very easy to get information about logged in users. In this article, we will show you how to retrieve information related to the currently logged in user.

We will utilize the get_currentuserinfo(); function. This can be used anywhere in the theme (header, footer, sidebar, page template, etc.). In order for it to work, the user must be logged in. Therefore, we need to use the conditional statement is_user_logged_in(). Sample code:

 <?php if( is_user_logged_in() ) { ?> <!-- text that logged in users will see --><?php } else{ ?> <!-- here is a paragraph that is shown to anyone not logged in --><p>By <a href="<?php%20bloginfo('url');%20?>/wp-register.php">registering</a>, you can save your favorite posts forfuture reference.</p><?php } ?>

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Now, for logged in users, we can display a custom message like "Hey Syed, everything is here, right where you want it to be". The above code will turn out like this:

 <?php if( is_user_logged_in() ) { ?> <!-- text that logged in users will see --><?php global$current_user; get_currentuserinfo(); ?><h1 id="Hi-php-echo-current-user-user-firstname-gt">Hi <?php echo$current_user->user_firstname; ?></h1><p>Everything is here, right where you hoped it would be :)</p><?php } else{ ?> <!-- here is a paragraph that is shown to anyone not logged in --><p>By <a href="<?php%20bloginfo('url');%20?>/wp-register.php">registering</a>, you can save your favorite posts forfuture reference.</p><?php } ?>

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The magic code we added above is $current_user->user_firstname; this works because the call to get_currentuserinfo() puts the current user's information into $current_user . You can use similar methods to get additional information about the user, such as login name, user ID, email, website, etc.

Here are examples of using all the information:

 <?php global$current_user; get_currentuserinfo(); echo&#39;Username: &#39;. $current_user->user_login . ""; echo'User email: '. $current_user->user_email . ""; echo'User first name: '. $current_user->user_firstname . ""; echo'User last name: '. $current_user->user_lastname . ""; echo'User display name: '. $current_user->display_name . ""; echo'User ID: '. $current_user->ID . "";?>

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Hope this helps. Combining this feature with the ability to add favorite posts, you can easily create a personalized experience.

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