function uc_store_email_to_username in Ubercart 7.3

Same name and namespace in other branches

1. 8.4 uc_store/uc_store.module \uc_store_email_to_username()
2. 6.2 uc_store/uc_store.module \uc_store_email_to_username()

Derives a valid username from an e-mail address.

Parameters

$email: An e-mail address.

Return value

A username derived from the e-mail address, using the part of the address up to the @ with integers appended to the end if needed to avoid a duplicate username.

3 calls to uc_store_email_to_username()

uc_cart_complete_sale_account in uc_cart/uc_cart.module

Link a completed sale to a user.

uc_order_create_form_create_submit in uc_order/uc_order.admin.inc

Form submission handler for customer search.

uc_order_select_customer in uc_order/uc_order.admin.inc

Presents the customer search results and let one of them be chosen.

File

uc_store/uc_store.module, line 1715

Contains global Ubercart functions and store administration functionality.

Code

function uc_store_email_to_username($email) {

  // Default to the first part of the e-mail address.
  $name = substr($email, 0, strpos($email, '@'));

  // Remove possible illegal characters.
  $name = preg_replace('/[^A-Za-z0-9_.-]/', '', $name);

  // Trim that value for spaces and length.
  $name = trim(substr($name, 0, USERNAME_MAX_LENGTH - 4));

  // Make sure we don't hand out a duplicate username.
  while (db_query("SELECT COUNT(uid) FROM {users} WHERE name LIKE :name", array(
    ':name' => $name,
  ))
    ->fetchField() > 0) {

    // If the username got too long, trim it back down.
    if (strlen($name) == USERNAME_MAX_LENGTH) {
      $name = substr($name, 0, USERNAME_MAX_LENGTH - 4);
    }

    // Append a random integer to the name.
    $name .= rand(0, 9);
  }
  return $name;
}