get_user_meta( int $user_id, string $key = '', bool $single = false )

Retrieve user meta field for a user.


Parameters Parameters

$user_id

(int) (Required) User ID.

$key

(string) (Optional) The meta key to retrieve. By default, returns data for all keys.

Default value: ''

$single

(bool) (Optional) Whether to return a single value.

Default value: false


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Return Return

(mixed) Will be an array if $single is false. Will be value of meta data field if $single is true.


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More Information More Information

Please note that if the meta value exists but is empty, it will return an empty string (or array) as if the meta value didn’t exist. This might cause unexpected behaviors in your code when you empty the user meta, your code can try to use add_user_meta instead of update_user_meta thinking the user does not have meta created yet.



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Source Source

File: wp-includes/user.php

function get_user_meta( $user_id, $key = '', $single = false ) {
	return get_metadata( 'user', $user_id, $key, $single );
}

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Changelog Changelog

Changelog
Version Description
3.0.0 Introduced.

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User Contributed Notes User Contributed Notes

  1. Skip to note 2 content
    Contributed by Codex

    Getting all meta data
    This example demonstrates leaving the $key argument blank, in order to retrieve all meta data for the given user (in this example, user_id = 9):

    <?php
      $all_meta_for_user = get_user_meta( 9 );
      print_r( $all_meta_for_user );
    ?>
    

    Results:

    Array ( [first_name] => Array ( [0] => Tom ) [last_name] => Array ( [0] => Auger)
    [nickname] => Array ( [0] => tomauger ) [description] => etc.... )

    Note: In order to access the data in this example you need to dereference the array that is returned for each key, like so:

    $last_name = $all_meta_for_user['last_name'][0];
    

    To avoid this, you may want to run a simple array_map() on the results of get_user_meta() in order to take only the first index of each result (thus emulating what the $single argument does when $key is provided:

      $all_meta_for_user = array_map( function( $a ){ return $a[0]; }, get_user_meta( $user_id ) );
      print_r( $all_meta_for_user );
    

    Results:

    Array ( [first_name] => Tom [last_name] => Auger [nickname] => tomauger [description] => etc.... )

    Additionally, if you want to return ALL meta for a specific user and filter out empty values, you can run array_filter() on the results of the array_map() above:

    // Get all user meta data for $user_id
    $meta = get_user_meta( $user_id );
    
    // Filter out empty meta data
    $meta = array_filter( array_map( function( $a ) {
    	return $a[0];
    }, $meta ) );
    
  2. Skip to note 3 content
    Contributed by Goran87

    To check if returned value is empty, ie does not exist, you could use something like:

    global $current_user; 
    
    get_currentuserinfo();
    
    if ( $current_user ) {
    	$permission = get_user_meta( $current_user->ID, 'some_meta' , true );
    	
    	if ( ! empty( $permission ) ) {
    		// do stuff
    	}
    }
    // works for both array and single values
    
  3. Skip to note 4 content
    Contributed by Codex

    This example returns and then displays the last name for user id 9.

    <?php 
      $user_id = 9;
      $key = 'last_name';
      $single = true;
      $user_last = get_user_meta( $user_id, $key, $single ); 
      echo '<p>The '. $key . ' value for user id ' . $user_id . ' is: ' . $user_last . '</p>'; 
    ?>
    

    Result:

    The last_name value for user id 9 is Franklin

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