How to Combine the krsort Function with array_multisort for More Advanced Sorting?

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</span><span><span>// Pre-setup section (unrelated to article content)</span></span><span>
</span><span><span>echo</span></span> <span><span>"Welcome to this article!<br>"</span></span>;
</span><span><span class="function_ invoke__">date_default_timezone_set</span></span>(<span><span>'Asia/Shanghai'</span></span>);
</span><span><span>echo</span></span> <span><span>"Current time: "</span></span> . <span><span class="function_ invoke__">date</span></span>(<span><span>"Y-m-d H:i:s"</span></span>) . <span><span>"<br>"</span></span>;
</span><span><span>