PHP 分布式系统中如何统一和同步 uniqid 的生成策略？

<span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// PHP 文件开头无关部分示例</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"欢迎访问我的博客！<br>"</span></span><span>;
</span><span><span class="hljs-title function_ invoke__">date_default_timezone_set</span></span><span>(</span><span><span class="hljs-string">"Asia/Shanghai"</span></span><span>);
</span><span><span class="hljs-variable">$greeting</span></span><span> = </span><span><span class="hljs-string">"今天是 "</span></span><span> . </span><span><span class="hljs-title function_ invoke__">date</span></span><span>(</span><span><span class="hljs-string">"Y-m-d H:i:s"</span></span><span>);
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-variable">$greeting</span></span><span>;
</span><span><span class="hljs-meta">?></span></span><span>

<hr>

</span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// 正文开始</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<h1>PHP 分布式系统中如何统一和同步 uniqid 的生成策略？</h1>"</span></span><span>;

</span><span><span class="hljs-comment">// 引言</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<p>在分布式系统中，唯一标识符（Unique ID）对于数据的一致性和追踪性至关重要。PHP 提供了 <code>uniqid()