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https://github.com/predis/predis.git
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Daniele Alessandri
50 lines
1.2 KiB
PHP
50 lines
1.2 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 'SharedConfigurations.php';
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// This example will not work with versions of Redis < 2.6.
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//
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// Additionally to the EVAL command defined in the current development profile, the new
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// Predis\Commands\ScriptedCommand base class can be used to build an higher abstraction
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// for our "scripted" commands so that they will appear just like any other command on
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// the client-side. This is a quick example used to implement INCREX.
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use Predis\Commands\ScriptedCommand;
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class IncrementExistingKey extends ScriptedCommand
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{
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public function getKeysCount()
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{
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return 1;
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}
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public function getScript()
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{
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return
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<<<LUA
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local cmd = redis.call
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if cmd('exists', KEYS[1]) == 1 then
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return cmd('incr', KEYS[1])
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end
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LUA;
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}
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}
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$client = new Predis\Client($single_server, 'dev');
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$client->getProfile()->defineCommand('increx', 'IncrementExistingKey');
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$client->set('foo', 10);
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var_dump($client->increx('foo')); // int(11)
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var_dump($client->increx('bar')); // NULL
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