📄 function.usleep.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>Delay execution in microseconds</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="ref.misc.html">Misc. Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.parsekit.html">Parsekit</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.usleep" class="refentry"> <div class="refnamediv">  <h1 class="refname">usleep</h1>  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">usleep</span> &mdash; <span class="dc-title">Delay execution in microseconds</span></p> </div>  <div class="refsect1 description">  <h3 class="title">Description</h3>  <div class="methodsynopsis dc-description">   <span class="type"><span class="type void">void</span></span> <span class="methodname"><b><b>usleep</b></b></span>    ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$micro_seconds</tt></span>   )</div>  <p class="para rdfs-comment">   Delays program execution for the given number of micro seconds.  </p> </div> <div class="refsect1 parameters">  <h3 class="title">Parameters</h3>  <p class="para">   <dl>    <dt>     <span class="term"><i><tt class="parameter">micro_seconds</tt></i></span>     <dd>      <p class="para">       Halt time in micro seconds. A micro second is one millionth of a       second.      </p>     </dd>    </dt>   </dl>  </p> </div> <div class="refsect1 returnvalues">  <h3 class="title">Return Values</h3>  <p class="para">   No value is returned.  </p> </div> <div class="refsect1 changelog">  <h3 class="title">ChangeLog</h3>  <p class="para">   <table class="informaltable">    <colgroup>     <thead valign="middle">      <tr valign="middle">       <th colspan="1">Version</th>       <th colspan="1">Description</th>      </tr>     </thead>     <tbody valign="middle" class="tbody">      <tr valign="middle">       <td colspan="1" rowspan="1" align="left">5.0.0</td>       <td colspan="1" rowspan="1" align="left">        This function now works on Windows systems.       </td>      </tr>     </tbody>    </colgroup>   </table>  </p> </div> <div class="refsect1 examples">  <h3 class="title">Examples</h3>  <p class="para">   <div class="example">    <p><b>Example #1 <b>usleep()</b> example</b></p>    <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">//&nbsp;Current&nbsp;time<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">date</span><span style="color: #007700">(</span><span style="color: #DD0000">'h:i:s'</span><span style="color: #007700">)&nbsp;.&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">//&nbsp;wait&nbsp;for&nbsp;2&nbsp;seconds<br /></span><span style="color: #0000BB">usleep</span><span style="color: #007700">(</span><span style="color: #0000BB">2000000</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">//&nbsp;back!<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">date</span><span style="color: #007700">(</span><span style="color: #DD0000">'h:i:s'</span><span style="color: #007700">)&nbsp;.&nbsp;</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>    </div>    <div class="example-contents"><p>The above example will output:</p></div>    <div class="example-contents"><pre><div class="cdata"><pre>11:13:2811:13:30</pre></div>    </pre></div>   </div>  </p> </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.set-time-limit.html" class="function" rel="rdfs-seeAlso">set_time_limit()</a></li>   </ul>  </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.misc.html">Misc. Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.parsekit.html">Parsekit</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>
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