1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
<?php
/*
* This file is part of the Predis package.
*
* (c) 2009-2020 Daniele Alessandri
* (c) 2021-2025 Till Krüss
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
require __DIR__ . '/shared.php';
// This example will not work with versions of Redis < 2.6.
//
// Additionally to the EVAL command, the Predis\Command\ScriptCommand class can
// be used to leverage an higher level abstraction for Lua scripting that makes
// scripts appear just like any other command on the client-side. This is basic
// example on how a script-based INCREX command can be defined:
use Predis\Command\ScriptCommand;
class IncrementExistingKeysBy extends ScriptCommand
{
public function getKeysCount()
{
// Tell Predis to use all the arguments but the last one as arguments
// for KEYS. The last one will be used to populate ARGV.
return -1;
}
public function getScript()
{
return <<<LUA
local cmd, insert = redis.call, table.insert
local increment, results = ARGV[1], { }
for idx, key in ipairs(KEYS) do
if cmd('exists', key) == 1 then
insert(results, idx, cmd('incrby', key, increment))
else
insert(results, idx, false)
end
end
return results
LUA;
}
}
$client = new Predis\Client($single_server, [
'commands' => [
'increxby' => 'IncrementExistingKeysBy',
],
]);
$client->mset('foo', 10, 'foobar', 100);
var_export($client->increxby('foo', 'foofoo', 'foobar', 50));
/*
array (
0 => 60,
1 => NULL,
2 => 150,
)
*/
|
