二十一、Swoole 基础学习笔记 - Swoole 高性能共享内存 Table
hi，我是温新，一名PHPer
文章基于 Swoole 5.0.1 版本编写。
学习目标：学习并了解 table 的使用
说明：本篇文章结合官方文档编写及参考网络资料编写，虽非全部原创，但也是结合了自己的理解，若转载请附带本文 URL，编写不易，持续编写更不易，谢谢！
什么是 Swoole\Table
Swoole\Table 是一个基于共享内存和锁实现的超高性能，并发数据结构。用于解决多进程 / 多线程数据共享和同步加锁问题。
Swoole\Table 解决了什么问题
Swoole\Table 主要解决进程之间共享内存数据问题。由于 PHP 不支持多线程，因此 Swoole 使用多进程模式，在多进程模式下存在进程内存隔离，在工作进程内修改 global 全局变量和超全局变量时，在其他进程是无效的。
进程之间要操作同一份数据，可以使用外部存储服务：
- 相间库，如 MySQL；
- 缓存服务器，如 Redis、Memcache；
- 磁盘文件，多进程并发读写时需要加锁。
普通的数据库和磁盘文件操作，存在较多 IO 等待时间。因此推荐使用：
-
Redis内存数据库，读写速度非常快，但是有 TCP 连接等问题，性能也不是最高的。 -
/dev/shm内存文件系统，读写操作全部在内存中完成，无IO消耗，性能极高，但是数据不是格式化的，还有数据同步的问题。
Swoole\Table 优势
- 性能强悍，单线程每秒可读写
200万次； - 应用代码无需加锁，
Table内置行锁自旋锁，所有操作均是多线程 / 多进程安全。用户层完全不需要考虑数据同步问题； - 支持多进程，
Table可以用于多进程之间共享数据； - 使用行锁，而不是全局锁，仅当 2 个进程在同一
CPU时间，并发读取同一条数据才会进行发生抢锁。
Swoole\table 创建一个 table
创建一个 Table 仅需三步：
- 1、实例化 Table；
- 2、设置表格字段及类型；
- 3、创建表格。
三步就可以创建出一个高性能 Table，table 创建后，其余操作都是围绕这个 table 来操作。
不要使用数组方式读写
Table，一定要使用文档中提供的 API 来进行操作。
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important"><?</span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 21-swoole-table.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 1、实例化 table 并设置最大行数</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1024</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 2、指定表格字段并设置表格类型与长度</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_INT</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'name'</span>, <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_STRING</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">64</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'salary'</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_FLOAT</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 3、创建表格</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">create</span>();</span>
表格已经创建完成，那么现在对这些方法进行学习：
__construct()
<span style="color: rgb(0, 176, 240);">Swoole\Table::__construct(int $size, float $conflict_proportion = 0.2);</span><br></br>
参数：
- size：指定表格的最大行数；
- conflict_proportion：哈希冲突的最大比例。
由于
Table底层是建立在共享内存之上，所以无法动态扩容。所以$size必须在创建前自己计算设置好，Table能存储的最大行数与$size正相关，但不完全一致，如$size为1024实际可存储的行数小于1024，如果$size过大，机器内存不足Table会创建失败。
size 容量计算：
- 如果
$size不是为2的N次方，如1024、8192、65536等，底层会自动调整为接近的一个数字，如果小于1024则默认成1024，即1024是最小值。从v4.4.6版本开始最小值为64。 -
Table占用的内存总数为 (HashTable结构体长度+KEY长度64字节+$size值) * (1 + $conflict_proportion值作为hash冲突) * (列尺寸)。 - 如果你的数据
Key和 Hash 冲突率超过20%，预留的冲突内存块容量不足，set新的数据就会报Unable to allocate memory错误，并返回false，存储失败，此时需要调大$size值并重启服务。 - 在内存足够的情况下尽量将此值设置的大一些。
column
含义：内存表增加一列。
<span style="color: rgb(0, 176, 240);">Swoole\Table->column(string $name, int $type, int $size = 0);</span><br></br>
参数：
- name：指定字段的名称；
- type：指定字段类型；
- size：指定字符串字段的最大长度【字符串类型的字段必须指定
$size】。 -
$type类型说明
create
含义：创建内存表。定义好表的结构后，执行 create 向操作系统申请内存，创建表。
<span style="color: rgb(0, 176, 240);">Swoole\Table->create(): bool</span><br></br>
Swoole\Table 操作
下面来看看 table 相关的操作方法。
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important"><?</span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 21-swoole-table-2.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1024</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_INT</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'name'</span>, <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_STRING</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">64</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'salary'</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_FLOAT</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'age'</span>, <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_INT</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">create</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* set() 方法： 添加数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param string $key 数据的 key</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param array $value 数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @return bool</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">set</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>, [<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'name'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'Lucy'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'age'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">18</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'salary'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1829.12</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">set</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_2'</span>, [<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'id'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">2</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'name'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'Jack'</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'age'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">19</span>,<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'salary'</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span><span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">2302.39</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* get() 方法：获取一行数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param string $key 数据的 key【必须为字符串类型】</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param string $field 当指定了 $field 时仅返回该字段的值，而不是整个记录</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$lucy</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">get</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$lucyName</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">get</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'name'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">print_r</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$lucy</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">echo</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$lucyName</span> . <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">PHP_EOL</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* exists() 方法：检查 table 中是否存在某一个 key</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @return bool</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$exists</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">exists</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">var_dump</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$exists</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* count() 方法：返回 table 中存在的条目数</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @return int </span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$count</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">count</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">echo</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$count</span> . <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">PHP_EOL</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* stats() 获取 Swoole\Table 状态。</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @return array</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$stats</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">stats</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">/**</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* incr() 方法：原子自增操作</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param string $key 数据的 key【如果 $key 对应的行不存在，默认列的值为 0</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param string $column 指定列名【仅支持浮点型和整型字段】</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">* @param string $incrby 增量 【如果列为 int，$incrby 必须为 int 型，如果列为 float 型，$incrby 必须为 float 类型】</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">*/</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">incr</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'age'</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">print_r</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">get</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>));</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">decr</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'user_1'</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'age'</span>);</span>
Swoole\Table 综合案例
案例使用官方文档中的案例来演示
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important"><?</span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 21-swoole-table-3.php</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>(<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1024</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'fd'</span>, <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_INT</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'reactor_id'</span>, <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_INT</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">column</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'data'</span>, <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Table</span>::<span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">TYPE_STRING</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">64</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">create</span>();</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">new</span> <span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">Swoole\Server</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'127.0.0.1'</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">9501</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">set</span>([<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'dispatch_mode'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 设置 table 实例为 server 的属性</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">table</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$table</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">on</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'receive'</span>, <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">function</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$reactor_id</span>, <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$data</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">explode</span>(<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"</span>, <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">trim</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$data</span>));</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">if</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span>[<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">0</span>] <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">==</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'get'</span>)</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 获取 table 数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">if</span> (<span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">count</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span>) <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important"><</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">2</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span>[<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>] <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>;</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$getFd</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">intval</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span>[<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$info</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">get</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$getFd</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 将数据返回给客户端</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">send</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, <span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">var_export</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$info</span>, <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">true</span>).<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"\n"</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> } <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">elseif</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span>[<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">0</span>] <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">==</span> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'set'</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(98, 151, 85) !important">// 设置 Table 数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$ret</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">table</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">set</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, [<span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'reactor_id'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$data</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'fd'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'data'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=></span> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$cmd</span>[<span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>]]);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">if</span> (<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$ret</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">===</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">false</span>) {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">send</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"ERROR\n"</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> } <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">else</span> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">send</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"OK\n"</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> } <span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">else</span> {</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">send</span>(<span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$fd</span>, <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">"command error.\n"</span>);</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">});</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$serv</span><span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">-></span><span style="box-sizing: border-box;color: rgb(18, 170, 228) !important">start</span>();</span>
客户端使用 telnet 进行连接：
<span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(224, 108, 117) !important">$telnet</span> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">127</span>.0.0.1 <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">9501</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">telnet</span>> </span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 添加数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(198, 120, 221) !important">set</span> Lucy</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">OK</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(98, 151, 85) !important"># 获取数据</span></span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(232, 191, 106) !important">get</span> </span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">array (</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'fd'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span>> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">1</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'reactor_id'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span>> <span style="box-sizing: border-box;color: rgb(209, 154, 102) !important">0</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'data'</span> <span style="box-sizing: border-box;color: rgb(86, 182, 194) !important">=</span>> <span style="box-sizing: border-box;color: rgb(152, 195, 121) !important">'Lucy'</span>,</span><br></br><span style="box-sizing: border-box;color: rgb(171, 178, 191);padding-right: 0.1px">)</span>
代码解析：
服务启动后，输入字符串 set Lcuy 表示添加数据；
输入 get 表示获取数据
我是温新，本篇文章到此结束，下一篇文章继续学习。
请登录后再评论