wizylabs said
<?php
// a short version of wp_insert_user(), no difference at all.
$new_user = wp_create_user( $username, $password, $email );
if( ! is_wp_error( $new_user ) )
{
$creds = array();
$creds['user_login'] = $username;
$creds['user_password'] = $pass;
$creds['remember'] = true;
$signon = wp_signon( $creds, false );
if ( is_wp_error( $signon ) )
{
// signed in, carry on
}
else
{
// echos out the errors, if any, from the login
echo $signon->get_error_message();
}
}
else
{
// echos out the errors, if any, from the user insertion
echo $new_user->get_error_message();
}
?>
above is a simplified code of my actual ones, not changed anything but stripped out the stuff that not necessary to debug 
the script inserts the user fine, but when it comes to login, it fails echoing out a message like “Username and password dont match” or something. The vars $username and $password and $email are defined earlier in the code.
maybe something like this?
function ft_insert_user(){
$newUserData = array (
'ID' => '',
'user_pass' => wp_generate_password(),
'user_login' => 'ryan',
'user_nicename' => 'ryan',
'user_url' => '',
'user_email' => 'ryan at ryan.com',
'display_name' => 'Ryan',
'nickname' => 'ryan',
'first_name' => 'ryan',
'user_registered' => '2006-10-16 08:54:47',
'role' => 'Administrator'
);
$newUserId = wp_insert_user( $newUserData );
}
add_action( 'admin_init', 'ft_insert_user' );
and for automatic logging in.
<?php
function auto_login( $user ) {
$username = $user;
// log in automatically
if ( !is_user_logged_in() ) {
$user = get_userdatabylogin( $username );
$user_id = $user->ID;
wp_set_current_user( $user_id, $user_login );
wp_set_auth_cookie( $user_id );
do_action( 'wp_login', $user_login );
}
}
?>
hopefully this helps.
