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138 lines
5.4 KiB
HTML
138 lines
5.4 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>使脚本睡眠到指定的时间为止。</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.time-sleep-until" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">time_sleep_until</h1>
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<p class="verinfo">(PHP 5 >= 5.1.0, PHP 7)</p><p class="refpurpose"><span class="refname">time_sleep_until</span> — <span class="dc-title">
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使脚本睡眠到指定的时间为止。
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.time-sleep-until-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>time_sleep_until</strong></span>
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( <span class="methodparam"><span class="type">float</span> <code class="parameter">$timestamp</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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使脚本睡眠到指定的
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<code class="parameter">timestamp</code>。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.time-sleep-until-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">timestamp</code></dt>
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<dd>
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<p class="para">
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将脚本唤醒的时间戳。
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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.time-sleep-until-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.time-sleep-until-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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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>5.3.0</td>
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<td>
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自此，函数在Windows平台可用。
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 errors" id="refsect1-function.time-sleep-until-errors">
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<h3 class="title">错误／异常</h3>
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<p class="para">
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如果设定的 <code class="parameter">timestamp</code> 为过去的时间，脚本将会产生一个 <strong><code>E_WARNING</code></strong> 级别的错误。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.time-sleep-until-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-4551">
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<p><strong>Example #1 <span class="function"><strong>time_sleep_until()</strong></span> 的一个例子</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 /><br /></span><span style="color: #FF8000">//returns false and generates a warning<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">time_sleep_until</span><span style="color: #007700">(</span><span style="color: #0000BB">time</span><span style="color: #007700">()-</span><span style="color: #0000BB">1</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">// may only work on faster computers, will sleep up to 0.2 seconds<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">time_sleep_until</span><span style="color: #007700">(</span><span style="color: #0000BB">microtime</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">)+</span><span style="color: #0000BB">0.2</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>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.time-sleep-until-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<span class="simpara">
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所有的信号会被延迟至脚本唤醒以后。
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</span>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.time-sleep-until-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="sleep.html" class="function" rel="rdfs-seeAlso">sleep()</a> - 延缓执行</span></li>
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<li class="member"><span class="function"><a href="usleep.html" class="function" rel="rdfs-seeAlso">usleep()</a> - 以指定的微秒数延迟执行</span></li>
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<li class="member"><span class="function"><a href="time_nanosleep.html" class="function" rel="rdfs-seeAlso">time_nanosleep()</a> - 延缓执行若干秒和纳秒</span></li>
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<li class="member"><span class="function"><a href="set_time_limit.html" class="function" rel="rdfs-seeAlso">set_time_limit()</a> - 设置脚本最大执行时间</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> |