53 lines
1.8 KiB
PHP
53 lines
1.8 KiB
PHP
<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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require __DIR__.'/shared.php';
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// This example demonstrates how to use Predis to save PHP sessions on Redis.
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//
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// The value of `session.gc_maxlifetime` in `php.ini` will be used by default as
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// the TTL for keys holding session data but this value can be overridden when
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// creating the session handler instance using the `gc_maxlifetime` option.
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//
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// NOTE: this class requires PHP >= 5.4 but can be used on PHP 5.3 if a polyfill
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// for SessionHandlerInterface is provided either by you or an external package
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// like `symfony/http-foundation`.
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//
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// See http://www.php.net/class.sessionhandlerinterface.php for more details.
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//
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if (!interface_exists('SessionHandlerInterface')) {
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die('ATTENTION: the session handler implemented by Predis requires PHP >= 5.4.0 '.
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"or a polyfill for SessionHandlerInterface provided by an external package.\n");
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}
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// Instantiate a new client just like you would normally do. Using a prefix for
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// keys will effectively prefix all session keys with the specified string.
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$client = new Predis\Client($single_server, array('prefix' => 'sessions:'));
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// Set `gc_maxlifetime` to specify a time-to-live of 5 seconds for session keys.
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$handler = new Predis\Session\Handler($client, array('gc_maxlifetime' => 5));
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// Register the session handler.
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$handler->register();
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// We just set a fixed session ID only for the sake of our example.
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session_id('example_session_id');
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session_start();
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if (isset($_SESSION['foo'])) {
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echo "Session has `foo` set to {$_SESSION['foo']}", PHP_EOL;
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} else {
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$_SESSION['foo'] = $value = mt_rand();
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echo "Empty session, `foo` has been set with $value", PHP_EOL;
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}
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