How to create WordPress User Programmatically

You can create a new user programmatically in WordPress using the wp_insert_user() function. Here is an example of how to do this:

<?php
  $userdata = array(
    'user_login'  =>  'exampleuser', 
    'user_url'    =>  'http://example.com',
    'user_pass'   =>  null, // When creating a user, `user_pass` is expected.
    'user_email'  =>  'user@example.com',
    'display_name'=>  'Example User',
    'nickname'    =>  'exampleuser',
    'first_name'  =>  'Example',
    'last_name'   =>  'User',
    'role'        =>  'subscriber'
  );

  $user_id = wp_insert_user( $userdata ) ;

  //On success
  if ( ! is_wp_error( $user_id ) ) {
    echo "User created : ". $user_id;
  }
?>

Please make sure to replace the dummy data with your actual data. Here is what each key in the $userdata array does:

• user_login (string) – The user’s login username.
• user_pass (string) – The user’s password.
• user_nicename (string) – A URL-friendly version of the user’s username.
• user_email (string) – The user’s email.
• user_url (string) – The user’s URL.
• display_name (string) – The user’s display name.
• nickname (string) – The user’s nickname.
• first_name (string) – The user’s first name.
• last_name (string) – The user’s last name.
• description (string) – The user’s bio.
• role (string) – The user’s role.

In the role section, you can specify the user role such as ‘administrator’, ‘editor’, ‘author’, ‘contributor’ or ‘subscriber’.

Remember, you will need appropriate permissions to create a user in WordPress.

Finally, wp_insert_user() returns the new user’s ID if the user is successfully created, or a WP_Error object if the user could not be created. Therefore, it’s important to check whether the return value is a WP_Error object before proceeding.