為什麼socket_strerror 有時無法返回預期的錯誤信息？

<span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// 前言部分，與正文內容無關</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"這是程序的前置輸出部分，用於初始化環境。<br>"</span></span><span>;
</span><span><span class="hljs-variable">$startTime</span></span><span> = </span><span><span class="hljs-title function_ invoke__">microtime</span></span><span>(</span><span><span class="hljs-literal">true</span></span><span>);
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"程序啟動時間："</span></span><span> . </span><span><span class="hljs-variable">$startTime</span></span><span> . </span><span><span class="hljs-string">"<br>"</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">// 正文開始</span></span><span>
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<h1>為什麼 socket_strerror 有時無法返回預期的錯誤信息？</h1>"</span></span><span>;

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<p>在 PHP 中，<code>socket_strerror()