src/ActiveRecord.php
public static function updateAll($attributes, $condition = null)
    {
        if (empty($attributes)) {
            return 0;
        }
        $db = static::getDb();
        $n = 0;
        foreach (self::fetchPks($condition) as $pk) {
            $newPk = $pk;
            $pk = static::buildKey($pk);
            $key = static::keyPrefix() . ':a:' . $pk;
            // save attributes
            $delArgs = [$key];
            $setArgs = [$key];
            foreach ($attributes as $attribute => $value) {
                if (isset($newPk[$attribute])) {
                    $newPk[$attribute] = $value;
                }
                if ($value !== null) {
                    if (is_bool($value)) {
                        $value = (int) $value;
                    }
                    $setArgs[] = $attribute;
                    $setArgs[] = $value;
                } else {
                    $delArgs[] = $attribute;
                }
            }
            $newPk = static::buildKey($newPk);
            $newKey = static::keyPrefix() . ':a:' . $newPk;
            // rename index if pk changed
            if ($newPk != $pk) {
                $db->executeCommand('MULTI');
                if (count($setArgs) > 1) {
                    $db->executeCommand('HMSET', $setArgs);
                }
                if (count($delArgs) > 1) {
                    $db->executeCommand('HDEL', $delArgs);
                }
                $db->executeCommand('LINSERT', [static::keyPrefix(), 'AFTER', $pk, $newPk]);
                $db->executeCommand('LREM', [static::keyPrefix(), 0, $pk]);
                $db->executeCommand('RENAME', [$key, $newKey]);
                $db->executeCommand('EXEC');
            } else {
                if (count($setArgs) > 1) {
                    $db->executeCommand('HMSET', $setArgs);
                }
                if (count($delArgs) > 1) {
                    $db->executeCommand('HDEL', $delArgs);
                }
            }
            $n++;
        }

        return $n;
    }
public static function updateAll($attributes, $condition = null)
    {
        if (empty($attributes)) {
            return 0;
        }
        $db = static::getDb();
        $n = 0;
        foreach (self::fetchPks($condition) as $pk) {
            $newPk = $pk;
            $pk = static::buildKey($pk);
            $key = static::keyPrefix() . ':a:' . $pk;
            // save attributes
            $delArgs = [$key];
            $setArgs = [$key];
            foreach ($attributes as $attribute => $value) {
                if (isset($newPk[$attribute])) {
                    $newPk[$attribute] = $value;
                }
                if ($value !== null) {
                    if (is_bool($value)) {
                        $value = (int) $value;
                    }
                    $setArgs[] = $attribute;
                    $setArgs[] = $value;
                } else {
                    $delArgs[] = $attribute;
                }
            }
            $newPk = static::buildKey($newPk);
            $newKey = static::keyPrefix() . ':a:' . $newPk;
            // rename index if pk changed
            if ($newPk != $pk) {
                $db->executeCommand('MULTI');
                if (count($setArgs) > 1) {
                    $db->executeCommand('HMSET', $setArgs);
                }
                if (count($delArgs) > 1) {
                    $db->executeCommand('HDEL', $delArgs);
                }
                $db->executeCommand('LINSERT', [static::keyPrefix(), 'AFTER', $pk, $newPk]);
                $db->executeCommand('LREM', [static::keyPrefix(), 0, $pk]);
                $db->executeCommand('RENAME', [$key, $newKey]);
                $db->executeCommand('EXEC');
            } else {
                if (count($setArgs) > 1) {
                    $db->executeCommand('HMSET', $setArgs);
                }
                if (count($delArgs) > 1) {
                    $db->executeCommand('HDEL', $delArgs);
                }
            }
            $n++;
        }

        return $n;
    }
Updates the whole table using the provided attribute values and conditions.
For example, to change the status to be 1 for all customers whose status is 2:

~~~
Customer::updateAll(['status' => 1], ['id' => 2]);
~~~

@param array $attributes attribute values (name-value pairs) to be saved into the table
@param array $condition the conditions that will be put in the WHERE part of the UPDATE SQL.
Please refer to [[ActiveQuery::where()]] on how to specify this parameter.
@return int the number of rows updated