<span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// Vorworte, die sich nicht mit dem Inhalt des Artikels beziehen PHP Code</span></span><span>
</span><span><span class="hljs-variable">$dummyVar</span></span><span> = </span><span><span class="hljs-string">"这部分CodeUnd正文无关,Nur für Platzhalter"</span></span><span>;
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-title function_ invoke__">strtoupper</span></span><span>(</span><span><span class="hljs-variable">$dummyVar</span></span><span>);
</span><span><span class="hljs-meta">?></span></span><span>
<hr>
</span><span><span class="hljs-meta"><?php</span></span><span>
<span class="hljs-comment">/**
* Titel:Wie man es benutzt gmdate Ausgang entspricht ISO 8601 Formatzeit?实用Code例子
*
* ISO 8601 Es ist eine international standardisierte Datums- und Uhrzeitdarstellung,Normalerweise verwendet für API、Protokollierung oder Datenaustausch über Zeitzonen hinweg。
* existieren PHP Mitte,Wir können passieren gmdate() Funktion zur Erzeugung von Konformität ISO 8601 Format UTC Zeit。
*
* ISO 8601 Beispiele für gemeinsame Format:
* 1. 完整日期Zeit:YYYY-MM-DDTHH:MM:SSZ (Zum Beispiel:2025-08-19T12:34:56Z)
* 2. Nur Datum:YYYY-MM-DD
*
* gmdate() Und date() ähnlich,但它返回的是格林威治标准Zeit(UTC)。
*/</span>
</span><span><span class="hljs-comment">// aktuell UTC Zeit</span></span><span>
</span><span><span class="hljs-variable">$utcTime</span></span><span> = </span><span><span class="hljs-title function_ invoke__">gmdate</span></span><span>(</span><span><span class="hljs-string">"Y-m-d\TH:i:s\Z"</span></span><span>);
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"aktuell UTC Zeit(ISO 8601 Format):<span class="hljs-subst">$utcTime</span></span></span><span><br>";
</span><span><span class="hljs-comment">// Verwenden Sie eine Zeitzone DateTime Objekt</span></span><span>
</span><span><span class="hljs-variable">$date</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">DateTime</span></span><span>(</span><span><span class="hljs-string">"now"</span></span><span>, </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">DateTimeZone</span></span><span>(</span><span><span class="hljs-string">"UTC"</span></span><span>));
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"verwenden DateTime Objekt生成的 ISO 8601 Zeit:"</span></span><span> . </span><span><span class="hljs-variable">$date</span></span><span>-></span><span><span class="hljs-title function_ invoke__">format</span></span><span>(</span><span><span class="hljs-title class_">DateTime</span></span><span>::</span><span><span class="hljs-variable constant_">ATOM</span></span><span>) . </span><span><span class="hljs-string">"<br>"</span></span><span>;
<span class="hljs-comment">/**
* Praktische Tipps:
* 1. gmdate("c") Nicht immer streng ISO 8601 UTC Format,推荐verwenden gmdate("Y-m-d\TH:i:s\Z")。
* 2. Nehmen Sie bei Bedarf Millisekunden oder Mikrosekunden ein,可以verwenden DateTime Und DateTime::format('Y-m-d\TH:i:s.u\Z')。
*/</span>
</span><span><span class="hljs-meta">?></span></span><span>
</span><span><span class="hljs-meta"><?php</span></span><span>
</span><span><span class="hljs-comment">// Und文章内容无关的尾部 PHP Code</span></span><span>
</span><span><span class="hljs-function"><span class="hljs-keyword">function</span></span></span><span> </span><span><span class="hljs-title">footerNote</span></span><span>(</span><span><span class="hljs-params"></span></span><span>) {
</span><span><span class="hljs-keyword">return</span></span><span> </span><span><span class="hljs-string">"Dieses Beispiel dient nur zur Demonstration PHP Datumsverarbeitung。"</span></span><span>;
}
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">"<footer>"</span></span><span> . </span><span><span class="hljs-title function_ invoke__">footerNote</span></span><span>() . </span><span><span class="hljs-string">"</footer>"</span></span><span>;
</span><span><span class="hljs-meta">?></span></span><span>
</span></span>