Fetch a user object.

Parameters

$user_info: Information about the user to load, consisting of one of the following:

• An associative array whose keys are fields in the {users} table (such as uid, name, pass, mail, status) and whose values are the field's value.
• A numeric user ID.

Return value

A fully-loaded $user object upon successful user load or FALSE if user cannot be loaded.

File

drupal-6.x/modules/user/user.module, line 153

Enables the user registration and login system.

Code

function user_load($user_info = array()) {
  // Dynamically compose a SQL query:
  $query = array();
  $params = array();

  if (is_numeric($user_info)) {
    $user_info = array('uid' => $user_info);
  }
  elseif (!is_array($user_info)) {
    return FALSE;
  }

  foreach ($user_info as $key => $value) {
    if ($key == 'uid' || $key == 'status') {
      $query[] = "$key = %d";
      $params[] = $value;
    }
    else if ($key == 'pass') {
      $query[] = "pass = '%s'";
      $params[] = md5($value);
    }
    else {
      $query[] = "LOWER($key) = LOWER('%s')";
      $params[] = $value;
    }
  }
  $result = db_query('SELECT * FROM {users} u WHERE ' . implode(' AND ', $query), $params);

  if ($user = db_fetch_object($result)) {
    $user = drupal_unpack($user);

    $user->roles = array();
    if ($user->uid) {
      $user->roles[DRUPAL_AUTHENTICATED_RID] = 'authenticated user';
    }
    else {
      $user->roles[DRUPAL_ANONYMOUS_RID] = 'anonymous user';
    }
    $result = db_query('SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d', $user->uid);
    while ($role = db_fetch_object($result)) {
      $user->roles[$role->rid] = $role->name;
    }
    user_module_invoke('load', $user_info, $user);
  }
  else {
    $user = FALSE;
  }

  return $user;
}