Understanding Authentication methods

In a world where security on the Internet is such a big issue, the need for great authentication methods is something that cannot be missed. Therefore, Zend Framework 2 provides a range of authentication methods that suits everyone's needs.

Getting ready

To make full use of this recipe, I recommend a working Zend Framework 2 skeleton application to be set up.

How to do it…

The following is a list of authentication methods—or as they are called adapters—that are readily available in Zend Framework 2. We will provide a small overview of the adapter, and instructions on how you can use it.

The DbTable adapter

Constructing a DbTable adapter is pretty easy, if we take a look at the following constructor:

public function __construct(
  // The Zend\Db\Adapter\Adapter
  DbAdapter $zendDb,

  // The table table name to query on
  $tableName = null,

  // The column that serves as 'username'
  $identityColumn = null,

  // The column that serves as 'password'
  $credentialColumn...