TimeZone_location_get関数をintltimezoneクラスと組み合わせて使用するためのベストプラクティスと開発の提案

gitbox 2025-06-12

php开发过程中、处理时间和时区是一项常见的任务。php提供了强大的时间处理功能、其中timezone_location_get

1。TimeZone_Location_get函数概述

timezone_location_get是php中的一个函数、主要用于获取与指定时区相关的位置信息。它返回的是一个包含时区位置的关联数组、通常包括country （国家代码）、地域

示例：

 <span><span><span class="hljs-variable">$location</span></span><span> = </span><span><span class="hljs-title function_ invoke__">timezone_location_get</span></span><span>(</span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">DateTimeZone</span></span><span>(</span><span><span class="hljs-string">'America/New_York'</span></span><span>));
</span><span><span class="hljs-title function_ invoke__">print_r</span></span><span>(</span><span><span class="hljs-variable">$location</span></span><span>);
</span></span>

该代码将输出时区アメリカ/new_york的位置信息：：

 <span><span><span class="hljs-title function_ invoke__">Array</span></span><span>
(
    [country] =&gt; US
    [region] =&gt; NY
    [latitude] =&gt; </span><span><span class="hljs-number">40.7128</span></span><span>
    [longitude] =&gt; -</span><span><span class="hljs-number">74.0060</span></span><span>
)
</span></span>

2。INTLTIMEZONE类简介

intltimezone是一个来自于intl扩展的类、提供了更强大的时区操作功能。intltimezone 不仅能获取时区的标准时间、夏令时等信息、还能与timezone_location_get函数结合使用、从而进一步扩展对时区的操作和管理。

示例：

 <span><span><span class="hljs-variable">$timezone</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">IntlTimeZone</span></span><span>(</span><span><span class="hljs-string">'America/New_York'</span></span><span>);
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-variable">$timezone</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">getID</span></span><span>();  </span><span><span class="hljs-comment">// &#36755;&#20986;&#65306;America/New_York</span></span><span>
</span></span>

3。TimeZone_Location_get

将timezone_location_get

示例：

 <span><span><span class="hljs-variable">$timezone</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">IntlTimeZone</span></span><span>(</span><span><span class="hljs-string">'America/New_York'</span></span><span>);
</span><span><span class="hljs-variable">$location</span></span><span> = </span><span><span class="hljs-title function_ invoke__">timezone_location_get</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-variable">$timezone</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">getID</span></span><span>()));

</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">'Country: '</span></span><span> . </span><span><span class="hljs-variable">$location</span></span><span>[</span><span><span class="hljs-string">'country'</span></span><span>] . PHP_EOL;
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">'Region: '</span></span><span> . </span><span><span class="hljs-variable">$location</span></span><span>[</span><span><span class="hljs-string">'region'</span></span><span>] . PHP_EOL;
</span></span>

在这段代码中、首先创建一个intltimezone对象、获取时区id、然后使用timezone_location_get获取该时区的位置信息。输出结果可能类似于：

 <span><span>Country: US
Region: NY
</span></span>

4。

timezone_location_get

4.1确保时区数据的准确性

时区信息可能随着夏令时（ dst ）的变化而发生变化、因此在应用中使用这些数据时、需要确保时区数据库是最新的。可以使用php

4.2处理异常和错误

在获取时区信息时、建议使用、トライキャッチ语句来捕捉潜在的异常。例如、如果用户提供的时区id无效、 intltimezone和timezone_location_get

 <span><span><span class="hljs-keyword">try</span></span><span> {
    </span><span><span class="hljs-variable">$timezone</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">IntlTimeZone</span></span><span>(</span><span><span class="hljs-string">'Invalid/Timezone'</span></span><span>);
    </span><span><span class="hljs-variable">$location</span></span><span> = </span><span><span class="hljs-title function_ invoke__">timezone_location_get</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-variable">$timezone</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">getID</span></span><span>()));
} </span><span><span class="hljs-keyword">catch</span></span><span> (</span><span><span class="hljs-built_in">Exception</span></span><span> </span><span><span class="hljs-variable">$e</span></span><span>) {
    </span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">'Error: '</span></span><span> . </span><span><span class="hljs-variable">$e</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">getMessage</span></span><span>();
}
</span></span>

4.3注意时区偏移量的变化

时区偏移量（如UTC+8 ）并非固定不变的、尤其是在夏令时切换时。为了避免计算错误、在需要处理时区偏移量时、应当使用intltimezone的getoffset（）

 <span><span><span class="hljs-variable">$timezone</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">IntlTimeZone</span></span><span>(</span><span><span class="hljs-string">'America/New_York'</span></span><span>);
</span><span><span class="hljs-variable">$offset</span></span><span> = </span><span><span class="hljs-variable">$timezone</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">getOffset</span></span><span>(</span><span><span class="hljs-title function_ invoke__">time</span></span><span>());
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-string">'Offset: '</span></span><span> . </span><span><span class="hljs-variable">$offset</span></span><span> / </span><span><span class="hljs-number">3600</span></span><span> . </span><span><span class="hljs-string">' hours'</span></span><span>;
</span></span>

4.4时区转换的注意事项

在进行时区转换时、可以使用dateTime

 <span><span><span class="hljs-variable">$date</span></span><span> = </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">DateTime</span></span><span>(</span><span><span class="hljs-string">'now'</span></span><span>, </span><span><span class="hljs-keyword">new</span></span><span> </span><span><span class="hljs-title class_">DateTimeZone</span></span><span>(</span><span><span class="hljs-string">'UTC'</span></span><span>));
</span><span><span class="hljs-variable">$date</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">setTimezone</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">'America/New_York'</span></span><span>));
</span><span><span class="hljs-keyword">echo</span></span><span> </span><span><span class="hljs-variable">$date</span></span><span>-&gt;</span><span><span class="hljs-title function_ invoke__">format</span></span><span>(</span><span><span class="hljs-string">'Y-m-d H:i:s'</span></span><span>);
</span></span>