c58f935fdc
The example (and related documentation at redis.io) was not updated for 5 years. Redis had no sorted sets and hashes when the original code was written (!). An update was really needed. We also use a modern PHP client now: Predis. A copy is shipped within this repository to make life easier to newcomers trying Redis for the first time via this example.
108 lines
3 KiB
PHP
108 lines
3 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Predis package.
|
|
*
|
|
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Predis\Command;
|
|
|
|
/**
|
|
* Class that defines a few helpers method for prefixing keys.
|
|
*
|
|
* @author Daniele Alessandri <suppakilla@gmail.com>
|
|
*/
|
|
class PrefixHelpers
|
|
{
|
|
/**
|
|
* Applies the specified prefix only the first argument.
|
|
*
|
|
* @param CommandInterface $command Command instance.
|
|
* @param string $prefix Prefix string.
|
|
*/
|
|
public static function first(CommandInterface $command, $prefix)
|
|
{
|
|
if ($arguments = $command->getArguments()) {
|
|
$arguments[0] = "$prefix{$arguments[0]}";
|
|
$command->setRawArguments($arguments);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Applies the specified prefix to all the arguments.
|
|
*
|
|
* @param CommandInterface $command Command instance.
|
|
* @param string $prefix Prefix string.
|
|
*/
|
|
public static function all(CommandInterface $command, $prefix)
|
|
{
|
|
if ($arguments = $command->getArguments()) {
|
|
foreach ($arguments as &$key) {
|
|
$key = "$prefix$key";
|
|
}
|
|
|
|
$command->setRawArguments($arguments);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Applies the specified prefix only to even arguments in the list.
|
|
*
|
|
* @param CommandInterface $command Command instance.
|
|
* @param string $prefix Prefix string.
|
|
*/
|
|
public static function interleaved(CommandInterface $command, $prefix)
|
|
{
|
|
if ($arguments = $command->getArguments()) {
|
|
$length = count($arguments);
|
|
|
|
for ($i = 0; $i < $length; $i += 2) {
|
|
$arguments[$i] = "$prefix{$arguments[$i]}";
|
|
}
|
|
|
|
$command->setRawArguments($arguments);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Applies the specified prefix to all the arguments but the first one.
|
|
*
|
|
* @param CommandInterface $command Command instance.
|
|
* @param string $prefix Prefix string.
|
|
*/
|
|
public static function skipFirst(CommandInterface $command, $prefix)
|
|
{
|
|
if ($arguments = $command->getArguments()) {
|
|
$length = count($arguments);
|
|
|
|
for ($i = 1; $i < $length; $i++) {
|
|
$arguments[$i] = "$prefix{$arguments[$i]}";
|
|
}
|
|
|
|
$command->setRawArguments($arguments);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Applies the specified prefix to all the arguments but the last one.
|
|
*
|
|
* @param CommandInterface $command Command instance.
|
|
* @param string $prefix Prefix string.
|
|
*/
|
|
public static function skipLast(CommandInterface $command, $prefix)
|
|
{
|
|
if ($arguments = $command->getArguments()) {
|
|
$length = count($arguments);
|
|
|
|
for ($i = 0; $i < $length - 1; $i++) {
|
|
$arguments[$i] = "$prefix{$arguments[$i]}";
|
|
}
|
|
|
|
$command->setRawArguments($arguments);
|
|
}
|
|
}
|
|
}
|