buexplain/bitmap

基于“github.com/spiral/goridge/v2”给php提供完善的bitmap操作能力

v0.9.0 2022-03-17 09:08 UTC

This package is auto-updated.

Last update: 2024-06-17 14:40:02 UTC


README

php的bitmap操作类

基于 github.com/RoaringBitmap/roaringgithub.com/spiral/goridgephp提供完善的bitmap操作能力。 整个软件包分为go服务端与php客户端,phpgo之间通过socket_create(AF_INET, SOCK_STREAM, SOL_TCP)或者是socket_create(AF_UNIX, SOCK_STREAM, 0)或者是stream_socket_client进行通信。

安装

  1. 引入php包 composer require buexplain/bitmap
  2. 根据系统环境执行go服务 vendor\bin\bitmap-win-amd64.exe.bat 或者是 ./vendor/bin/bitmap-linux-amd64.bin 程序启动help:
[root@localhost bin]# ./bitmap-linux-amd64.bin -h
Usage of ./bitmap-linux-amd64.bin:
  -address string
    	/run/bitmap-rpc.sock or 127.0.0.1:6060 (default "/run/bitmap-rpc.sock")
  -network string
    	unix or tcp (default "unix")
  -gcTick int
    	connection gc tick second (default 3)
  -reconnectWait int
    	reconnect wait second (default 60)

参数gcTickreconnectWait的作用,请阅读 源码 体会。

示例

<?php

require "vendor/autoload.php";

use BitMap\ClientFactory;
$b1 = ClientFactory::make();
$b2 = ClientFactory::make();

//求并集,并将结果保存到$b1
$b1->addMany([1, 2]);
$b2->addMany([2, 3]);
$b1->or($b2);
print_r($b1->toArray()); //[1,2,3]

//求交集,并将结果保存到$b1
$b1->clear()->addMany([1, 2, 3]);
$b2->clear()->addMany([2, 3, 4]);
$b1->and($b2);
print_r($b1->toArray()); //[2,3]

//求差集,并将结果保存到$b1
$b1->clear()->addMany([1, 2, 3]);
$b2->clear()->addMany([1, 3, 4]);
$b1->andNot($b2);
print_r($b1->toArray()); //[2]

//求对称差集,并将结果保存到$b1
$b1->clear()->addMany([1, 2, 3]);
$b2->clear()->addMany([3, 4, 5]);
$b1->xOr($b2);
print_r($b1->toArray()); //[1,2,4,5]

//迭代,每次从$b1中弹出2个元素,所有迭代完成后,$b1中的元素个数是0
$b1->clear()->addMany([1, 2, 3, 4, 5, 200000000, 6, 20, 200000001]);
while ($tmp = $b1->iterate(2)) {
    print_r($tmp); // [1,2], [3,4], [5,6], [20,200000000], [200000001]
}
var_dump($b1->getCardinality() == 0); //true

License

Apache-2.0