例 30.6. 开启全局会话

<?php
...
require_once 'Zend/Session.php';
Zend_Session::start();
...
?>

例 30.7. 锁住会话命名空间

<?php
    // assuming:
    $userProfileNamespace = new Zend_Session_Namespace('userProfileNamespace');

    // marking session as read only locked
    $userProfileNamespace->lock();

    // unlocking read-only lock
    if ($userProfileNamespace->isLocked()) {
        $userProfileNamespace->unLock();
    }
?>

例 30.8. 锁住视图中的会话

<?php
class FooModule_View extends Zend_View
{
    public function show($name)
    {
        if (!isset($this->mySessionNamespace)) {
            $this->mySessionNamespace = Zend::registry('FooModule');
        }

        if ($this->mySessionNamespace->isLocked()) {
            return parent::render($name);
        }

        $this->mySessionNamespace->lock();
        $return = parent::render($name);
        $this->mySessionNamespace->unLock();

        return $return;
    }
}
?>

例 30.9. 带有生命期的控制器命名空间会话

<?php
require_once 'Zend/Session.php';
// question view controller
$testSpace = new Zend_Session_Namespace('testSpace');
$testSpace->setExpirationSeconds(300, "accept_answer"); // expire only this variable
$testSpace->accept_answer = true;

-- 

// answer processing controller
$testSpace = new Zend_Session_Namespace('testSpace');

if ($testSpace->accept_answer === true) {
    // within time
}
else {
    // not within time
}
?>

例 30.10. 限制为单一实例

<?php
    require_once 'Zend/Session.php';
    $authSpaceAccessor1 = new Zend_Session_Namespace('Zend_Auth');
    $authSpaceAccessor2 = new Zend_Session_Namespace('Zend_Auth', Zend_Session_Namespace::SINGLE_INSTANCE);
    $authSpaceAccessor1->foo = 'bar';
    assert($authSpaceAccessor2->foo, 'bar'); // passes
    doSomething($options, $authSpaceAccessor2); // pass the accessor to wherever it is needed
    .
    .
    .
    $aNamespaceObject = new Zend_Session_Namespace('Zend_Auth'); // this will throw an error
?>

例 30.11. 已知的命名空间下数组的问题

<?php
    $sessionNamespace = new Zend_Session_Namespace('Foo');
    $sessionNamespace->array = array();
    $sessionNamespace->array['testKey'] = 1; // does not work before PHP 5.2.1
?>

例 30.12. Workaround: 取出，修改，存回

<?php
    $sessionNamespace = new Zend_Session_Namespace('Foo');
    $sessionNamespace->array = array('tree' => 'apple');
    $tmp = $sessionNamespace->array;
    $tmp['fruit'] = 'peach';
    $sessionNamespace->array = $tmp;
?>

例 30.13. Workaround: 存储包含目标数组引用的数组

<?php
    $myNamespace = new Zend_Session_Namespace('mySpace');

    // works, even for broken versions of PHP
    $a = array(1,2,3);
    $myNamespace->someArray = array( & $a ) ;
    $a['foo'] = 'bar';
?>

例 30.14. 简化访问授权标识

<?php
    // pre-authentication request
    require_once 'Zend/Auth/Result.php';
    require_once 'Zend/Auth/Adapter/Digest.php';
    $adapter = new Zend_Auth_Adapter_Digest($filename, $realm, $username, $password);
    $result = $adapter->authenticate();
    require_once 'Zend/Session/Namespace.php';
    $namespace = Zend_Session_Namespace('Zend_Auth');
    if ($result->isValid()) {
        $namespace->authorizationId = $result->getIdentity();
        $namespace->date = time();
    } else {
        $namespace->attempts++;
    }

    // subsequent requests
    require_once 'Zend/Session.php';
    Zend_Session::start();
    $namespace = Zend_Session_Namespace('Zend_Auth');

    echo "Valid: ", (empty($namespace->authorizationId) ? 'No' : 'Yes'), "\n"';
    echo "Authorization / user Id: ", (empty($namespace->authorizationId)
        ? 'none' : print_r($namespace->authorizationId, true)), "\n"';
    echo "Authentication attempts: ", (empty($namespace->attempts)
        ? '0' : $namespace->attempts), "\n"';
    echo "Authenticated on: ",
        (empty($namespace->date) ? 'No' : date(DATE_ATOM, $namespace->date), "\n"';
?>

例 30.15. 使用PHPUnit测试由Zend_Session*写成的代码

<?php
        // testing setExpirationSeconds()
        require 'tests/Zend/Session/SessionTestHelper.php'; // also see SessionTest.php in trunk/
        $script = 'SessionTestHelper.php';
        $s = new Zend_Session_Namespace('space');
        $s->a = 'apple';
        $s->o = 'orange';
        $s->setExpirationSeconds(5);

        Zend_Session::regenerateId();
        $id = Zend_Session::getId();
        session_write_close(); // release session so process below can use it
        sleep(4); // not long enough for things to expire
        exec($script . "expireAll $id expireAll", $result);
        $result = $this->sortResult($result);
        $expect = ';a === apple;o === orange;p === pear';
        $this->assertTrue($result === $expect,
            "iteration over default Zend_Session namespace failed; expecting result === '$expect', but got '$result'");

        sleep(2); // long enough for things to expire (total of 6 seconds waiting, but expires in 5)
        exec($script . "expireAll $id expireAll", $result);
        $result = array_pop($result);
        $this->assertTrue($result === '',
            "iteration over default Zend_Session namespace failed; expecting result === '', but got '$result')");
        session_start(); // resume artificially suspended session

        // We could split this into a separate test, but actually, if anything leftover from above
        // contaminates the tests below, that is also a bug that we want to know about.
        $s = new Zend_Session_Namespace('expireGuava');
        $s->setExpirationSeconds(5, 'g'); // now try to expire only 1 of the keys in the namespace
        $s->g = 'guava';
        $s->p = 'peach';
        $s->p = 'plum';

        session_write_close(); // release session so process below can use it
        sleep(6); // not long enough for things to expire
        exec($script . "expireAll $id expireGuava", $result);
        $result = $this->sortResult($result);
        session_start(); // resume artificially suspended session
        $this->assertTrue($result === ';p === plum',
            "iteration over named Zend_Session namespace failed (result=$result)");
?>