📄 function.time-sleep-until.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Make the script sleep until the specified time</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.time-nanosleep.html">time_nanosleep</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.uniqid.html">uniqid</a></div> <div class="up"><a href="ref.misc.html">Misc. Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.time-sleep-until" class="refentry"> <div class="refnamediv"> <h1 class="refname">time_sleep_until</h1> <p class="verinfo">(PHP 5 >= 5.1.0)</p><p class="refpurpose"><span class="refname">time_sleep_until</span> — <span class="dc-title"> Make the script sleep until the specified time </span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>time_sleep_until</b></b></span> ( <span class="methodparam"><span class="type">float</span> <tt class="parameter">$timestamp</tt></span> )</div> <p class="para rdfs-comment"> Makes the script sleep until the specified <i><tt class="parameter">timestamp</tt></i>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">timestamp</tt></i></span> <dd> <p class="para"> The timestamp when the script should wake. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> If the specified <i><tt class="parameter">timestamp</tt></i> is in the past, this function will generate a <b><tt>E_WARNING</tt></b>. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 A <b>time_sleep_until()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><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">time</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></span></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: <span class="simpara"> All signals will be delivered after the script wakes up. </span> </p></blockquote> <blockquote><p><b class="note">Note</b>: <span class="simpara">This function is notimplemented on Windows platforms.</span></p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.sleep.html" class="function" rel="rdfs-seeAlso">sleep()</a></li> <li class="member"><a href="function.usleep.html" class="function" rel="rdfs-seeAlso">usleep()</a></li> <li class="member"><a href="function.time-nanosleep.html" class="function" rel="rdfs-seeAlso">time_nanosleep()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.time-nanosleep.html">time_nanosleep</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.uniqid.html">uniqid</a></div> <div class="up"><a href="ref.misc.html">Misc. Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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