Create a user in the wordpress dashboard using the PHP in the wordpress.

create-user-in-wordpress-using-php.php

<?php
/**
* Create a user in the wordpress dashboard using the PHP in the wordpress.
*/
  add_action('init', 'create_user_account');
  function create_user_account() {
      $username = 'username123';
      $email = '[email protected]';
      $password = 'pasword123';
      $user_id = username_exists( $username );
      if ( !$user_id && email_exists($email) == false ) {
          $user_id = wp_create_user( $username, $password, $email );
          if( !is_wp_error($user_id) ) {
              $user = get_user_by( 'id', $user_id );
              $user->set_role( 'administrator' );
          }
      }
  }
?>