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346 lines
11 KiB
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Returns an array with information about sunset/sunrise and twilight begin/end</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.date-sun-info" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">date_sun_info</h1>
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<p class="verinfo">(PHP 5 >= 5.1.2, PHP 7)</p><p class="refpurpose"><span class="refname">date_sun_info</span> — <span class="dc-title">Returns an array with information about sunset/sunrise and twilight begin/end</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.date-sun-info-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>date_sun_info</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$time</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$latitude</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$longitude</code></span>
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) : <span class="type">array</span></div>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.date-sun-info-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">time</code></dt>
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<dd>
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<p class="para">
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Timestamp.
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</p>
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</dd>
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<dt>
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<code class="parameter">latitude</code></dt>
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<dd>
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<p class="para">
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Latitude in degrees.
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</p>
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</dd>
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<dt>
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<code class="parameter">longitude</code></dt>
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<dd>
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<p class="para">
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Longitude in degrees.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.date-sun-info-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns array on success 或者在失败时返回 <strong><code>FALSE</code></strong>.
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The structure of the array is detailed in the following list:
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</p>
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<p class="para">
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<dl>
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<dt>
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<em>sunrise</em></dt>
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<dd>
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<span class="simpara">
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The time of the sunrise (zenith angle = 90°35').
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</span>
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</dd>
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<dt>
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<em>sunset</em></dt>
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<dd>
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<span class="simpara">
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The time of the sunset (zenith angle = 90°35').
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</span>
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</dd>
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<dt>
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<em>transit</em></dt>
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<dd>
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<span class="simpara">
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The time when the sun is at its zenith, i.e. has reached its topmost
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point.
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</span>
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</dd>
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<dt>
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<em>civil_twilight_begin</em></dt>
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<dd>
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<span class="simpara">
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The start of the civil dawn (zenith angle = 96°). It ends at <em>sunrise</em>.
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</span>
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</dd>
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<dt>
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<em>civil_twilight_end</em></dt>
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<dd>
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<span class="simpara">
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The end of the civil dusk (zenith angle = 96°). It starts at <em>sunset</em>.
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</span>
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</dd>
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<dt>
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<em>nautical_twilight_begin</em></dt>
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<dd>
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<span class="simpara">
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The start of the nautical dawn (zenith angle = 102°). It ends at
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<em>civil_twilight_begin</em>.
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</span>
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</dd>
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<dt>
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<em>nautical_twilight_end</em></dt>
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<dd>
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<span class="simpara">
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The end of the nautical dusk (zenith angle = 102°). It starts at
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<em>civil_twilight_end</em>.
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</span>
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</dd>
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<dt>
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<em>astronomical_twilight_begin</em></dt>
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<dd>
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<span class="simpara">
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The start of the astronomical dawn (zenith angle = 108°). It ends at
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<em>nautical_twilight_begin</em>.
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</span>
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</dd>
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<dt>
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<em>astronomical_twilight_end</em></dt>
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<dd>
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<span class="simpara">
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The end of the astronomical dusk (zenith angle = 108°). It starts at
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<em>nautical_twilight_end</em>.
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</span>
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</dd>
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</dl>
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</p>
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<p class="para">
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The values of the array elements are either UNIX timestamps, <strong><code>FALSE</code></strong> if the
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sun is below the respective zenith for the whole day, or <strong><code>TRUE</code></strong> if the sun is
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above the respective zenith for the whole day.
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.date-sun-info-changelog">
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<h3 class="title">更新日志</h3>
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>5.2.2</td>
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<td>
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The order of <code class="parameter">latitude</code> and
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<code class="parameter">longitude</code> has been swapped.
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="refsect1 examples" id="refsect1-function.date-sun-info-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-2707">
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<p><strong>Example #1 A <span class="function"><strong>date_sun_info()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$sun_info </span><span style="color: #007700">= </span><span style="color: #0000BB">date_sun_info</span><span style="color: #007700">(</span><span style="color: #0000BB">strtotime</span><span style="color: #007700">(</span><span style="color: #DD0000">"2006-12-12"</span><span style="color: #007700">), </span><span style="color: #0000BB">31.7667</span><span style="color: #007700">, </span><span style="color: #0000BB">35.2333</span><span style="color: #007700">);<br />foreach (</span><span style="color: #0000BB">$sun_info </span><span style="color: #007700">as </span><span style="color: #0000BB">$key </span><span style="color: #007700">=> </span><span style="color: #0000BB">$val</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"</span><span style="color: #0000BB">$key</span><span style="color: #DD0000">: " </span><span style="color: #007700">. </span><span style="color: #0000BB">date</span><span style="color: #007700">(</span><span style="color: #DD0000">"H:i:s"</span><span style="color: #007700">, </span><span style="color: #0000BB">$val</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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sunrise: 05:52:11
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sunset: 15:41:21
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transit: 10:46:46
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civil_twilight_begin: 05:24:08
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civil_twilight_end: 16:09:24
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nautical_twilight_begin: 04:52:25
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nautical_twilight_end: 16:41:06
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astronomical_twilight_begin: 04:21:32
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astronomical_twilight_end: 17:12:00
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</pre></div>
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</div>
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</div>
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<div class="example" id="example-2708">
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<p><strong>Example #2 Polar night</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">date_sun_info</span><span style="color: #007700">(</span><span style="color: #0000BB">strtotime</span><span style="color: #007700">(</span><span style="color: #DD0000">"2017-12-21"</span><span style="color: #007700">), </span><span style="color: #0000BB">90</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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array(9) {
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["sunrise"]=>
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bool(false)
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["sunset"]=>
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bool(false)
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["transit"]=>
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int(1513857490)
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["civil_twilight_begin"]=>
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bool(false)
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["civil_twilight_end"]=>
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bool(false)
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["nautical_twilight_begin"]=>
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bool(false)
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["nautical_twilight_end"]=>
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bool(false)
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["astronomical_twilight_begin"]=>
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bool(false)
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["astronomical_twilight_end"]=>
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bool(false)
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}
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</pre></div>
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</div>
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</div>
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<div class="example" id="example-2709">
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<p><strong>Example #3 Midnight sun</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">date_sun_info</span><span style="color: #007700">(</span><span style="color: #0000BB">strtotime</span><span style="color: #007700">(</span><span style="color: #DD0000">"2017-06-21"</span><span style="color: #007700">), </span><span style="color: #0000BB">90</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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<div class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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array(9) {
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["sunrise"]=>
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bool(true)
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["sunset"]=>
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bool(true)
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["transit"]=>
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int(1498046510)
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["civil_twilight_begin"]=>
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bool(true)
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["civil_twilight_end"]=>
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bool(true)
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["nautical_twilight_begin"]=>
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bool(true)
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["nautical_twilight_end"]=>
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bool(true)
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["astronomical_twilight_begin"]=>
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bool(true)
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["astronomical_twilight_end"]=>
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bool(true)
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}
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.date-sun-info-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="date_sunrise.html" class="function" rel="rdfs-seeAlso">date_sunrise()</a> - 返回给定的日期与地点的日出时间</span></li>
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<li class="member"><span class="function"><a href="date_sunset.html" class="function" rel="rdfs-seeAlso">date_sunset()</a> - 返回给定的日期与地点的日落时间</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |