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68 lines
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HTML
68 lines
4.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>取得 GMT 日期的 UNIX 时间戳</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.gmmktime" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">gmmktime</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">gmmktime</span> — <span class="dc-title">取得 GMT 日期的 UNIX 时间戳</span></p>
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</div>
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<div class="refsect1 unknown-unknown-exampleu" id="refsect1-function.gmmktime-unknown-unknown-exampleu">
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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>gmmktime</strong></span>
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([ <span class="methodparam"><span class="type">int</span> <code class="parameter">$hour</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$minute</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$second</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$month</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$day</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$year</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$is_dst</code></span>
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]]]]]]] ) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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和 <span class="function"><a href="mktime.html" class="function">mktime()</a></span> 完全一样，只除了返回值是格林威治标准时的时间戳。
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</p>
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<p class="para">
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参数总是表示 GMT 日期，因此 <code class="parameter">is_dst</code>
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对结果没有影响。
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</p>
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<p class="para">
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和 <span class="function"><a href="mktime.html" class="function">mktime()</a></span>
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一样，参数可以从右到左依次空着，空着的参数会被设为相应的当前 GMT 值。
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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自 5.1.0 起，<code class="parameter">is_dst</code> 参数被废弃。因此应该用新的时区处理特性。
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</p>
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</p></blockquote>
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<p class="para">
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<span class="simpara">
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<span class="function"><strong>gmmktime()</strong></span> 内部使用了
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<span class="function"><a href="mktime.html" class="function">mktime()</a></span>，因此只有转换成本地时间也合法的时间才能用在其中。
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so only times valid in derived local time can be used.
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</span>
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</p></blockquote>
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<div class="example" id="example-2723">
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<p><strong>Example #1 <span class="function"><strong>gmmktime()</strong></span> 在 Windows 中的边界</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 />gmmktime</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">, </span><span style="color: #0000BB">1970</span><span style="color: #007700">); </span><span style="color: #FF8000">// 在 GMT 和西方合法，在东方不合法<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>
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</p>
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<p class="para">
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参见 <span class="function"><a href="mktime.html" class="function">mktime()</a></span>，<span class="function"><a href="date.html" class="function">date()</a></span>
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和 <span class="function"><a href="time.html" class="function">time()</a></span>。
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</p>
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</div>
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</div></div></div></body></html> |