0

I have set the display name to show both first name and last name using the function below. How do I manipulate the LAST NAME to only pull the first letter of that string? Example, if you sign up as John Doe (First name= John, Last name= Doe), I want your display name to be John D.

Thanks

function force_pretty_displaynames($user_login, $user) {

  $outcome = trim(get_user_meta($user->ID, 'first_name', true) . " " . get_user_meta($user->ID, 'last_name', true));
  if (!empty($outcome) && ($user->data->display_name!=$outcome)) {
    wp_update_user( array ('ID' => $user->ID, 'display_name' => $outcome));    
  }
}
add_action('wp_login','force_pretty_displaynames',10,2); 
0

Use PHP's substr() function:

  $outcome = trim(
    get_user_meta( $user->ID, 'first_name', true ) 
    . ' ' 
    . substr( get_user_meta( $user->ID, 'last_name', true ), 0, 1 )
    . '.'
  );

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