public function allow($identities)
	{
		// Implicit deny by default.
		$result = null;

		// Check that the inputs are valid.
		if (!empty($identities))
		{
			if (!is_array($identities))
			{
				$identities = array($identities);
			}

			foreach ($identities as $identity)
			{
				// Technically the identity just needs to be unique.
				$identity = (int) $identity;

				// Check if the identity is known.
				if (isset($this->data[$identity]))
				{
					$result = (boolean) $this->data[$identity];

					// An explicit deny wins.
					if ($result === false)
					{
						break;
					}
				}

			}
		}

		return $result;
	}
public function allow($identities)
	{
		// Implicit deny by default.
		$result = null;

		// Check that the inputs are valid.
		if (!empty($identities))
		{
			if (!is_array($identities))
			{
				$identities = array($identities);
			}

			foreach ($identities as $identity)
			{
				// Technically the identity just needs to be unique.
				$identity = (int) $identity;

				// Check if the identity is known.
				if (isset($this->data[$identity]))
				{
					$result = (boolean) $this->data[$identity];

					// An explicit deny wins.
					if ($result === false)
					{
						break;
					}
				}

			}
		}

		return $result;
	}
public function allow ( $ identities ) { // Implicit deny by default. $ result = null ; // Check that the inputs are valid. if ( ! empty ( $ identities ) ) { if ( ! is_array ( $ identities ) ) { $ identities = array ( $ identities ) ; } foreach ( $ identities as $ identity ) { // Technically the identity just needs to be unique. $ identity = ( int ) $ identity ; // Check if the identity is known. if ( isset ( $ this -> data [ $ identity ] ) ) { $ result = ( boolean ) $ this -> data [ $ identity ] ; // An explicit deny wins. if ( $ result === false ) { break ; } } } } return $ result ; }
Checks that this action can be performed by an identity.

The identity is an integer where +ve represents a user group,
and -ve represents a user.

@param   mixed  $identities  An integer or array of integers representing the identities to check.
@return  mixed  True if allowed, false for an explicit deny, null for an implicit deny.
Checks that this action can be performed by an identity .