Function: wpmu_validate_user_signup()

Defined at:

1. /wp-includes/ms-functions.php -> line 406

Referenced 4 times:

1. /wp-admin/network/user-new.php -> line 43
2. /wp-admin/user-new.php -> line 115
3. /wp-signup.php -> line 146
4. /wp-signup.php -> line 326