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>time_nanosleep</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN126115"
></A
><P
>    (PHP 5)</P
>time_nanosleep&nbsp;--&nbsp;Delay for a number of seconds and nanoseconds</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN126118"
></A
><H2
>说明</H2
>mixed <B
CLASS="methodname"
>time_nanosleep</B
> ( int seconds, int nanoseconds )<BR
></BR
><P
>&#13;   Delays program execution for the given number of
   <CODE
CLASS="parameter"
>seconds</CODE
> and <CODE
CLASS="parameter"
>nanoseconds</CODE
>.
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN126132"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>seconds</CODE
></DT
><DD
><P
>&#13;       Must be a positive integer.
      </P
></DD
><DT
><CODE
CLASS="parameter"
>nanoseconds</CODE
></DT
><DD
><P
>&#13;       Must be a positive integer less than 1 billion.
      </P
></DD
></DL
></DIV
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN126146"
></A
><H2
>返回值</H2
><P
>&#13;   如果成功则返回 <TT
CLASS="constant"
><B
>TRUE</B
></TT
>，失败则返回 <TT
CLASS="constant"
><B
>FALSE</B
></TT
>。
  </P
><P
>&#13;   If the delay was interrupted by a signal, an associative array will be
   returned with the components:
   <P
></P
><UL
><LI
><P
>&#13;      <TT
CLASS="literal"
>seconds</TT
> - number of seconds remaining in
      the delay
     </P
></LI
><LI
><P
>&#13;      <TT
CLASS="literal"
>nanoseconds</TT
> - number of nanoseconds
      remaining in the delay
     </P
></LI
></UL
>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN126159"
></A
><H2
>范例</H2
><P
>&#13;   <TABLE
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><DIV
CLASS="example"
><A
NAME="AEN126162"
></A
><P
><B
>例 1. <B
CLASS="function"
>time_nanosleep()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#FF8000">// Careful! This won't work as expected if an array is returned<br /></font><font color="#007700">if (</font><font color="#0000BB">time_nanosleep</font><font color="#007700">(</font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">500000000</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Slept for half a second.\n"</font><font color="#007700">;<br />}<br /><br /></font><font color="#FF8000">// This is better:<br /></font><font color="#007700">if (</font><font color="#0000BB">time_nanosleep</font><font color="#007700">(</font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">500000000</font><font color="#007700">) === </font><font color="#0000BB">true</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Slept for half a second.\n"</font><font color="#007700">;<br />}<br /><br /></font><font color="#FF8000">// And this is the best:<br /></font><font color="#0000BB">$nano </font><font color="#007700">= </font><font color="#0000BB">time_nanosleep</font><font color="#007700">(</font><font color="#0000BB">2</font><font color="#007700">, </font><font color="#0000BB">100000</font><font color="#007700">);<br /><br />if (</font><font color="#0000BB">$nano </font><font color="#007700">=== </font><font color="#0000BB">true</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Slept for 2 seconds, 100 milliseconds.\n"</font><font color="#007700">;<br />} elseif (</font><font color="#0000BB">$nano </font><font color="#007700">=== </font><font color="#0000BB">false</font><font color="#007700">) {<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Sleeping failed.\n"</font><font color="#007700">;<br />} elseif (</font><font color="#0000BB">is_array</font><font color="#007700">(</font><font color="#0000BB">$nano</font><font color="#007700">)) {<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$seconds </font><font color="#007700">= </font><font color="#0000BB">$nano</font><font color="#007700">[</font><font color="#DD0000">'seconds'</font><font color="#007700">];<br />&nbsp;&nbsp;&nbsp;&nbsp;</font><font color="#0000BB">$nanoseconds </font><font color="#007700">= </font><font color="#0000BB">$nano</font><font color="#007700">[</font><font color="#DD0000">'nanoseconds'</font><font color="#007700">];<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Interrupted by a signal.\n"</font><font color="#007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;echo </font><font color="#DD0000">"Time remaining: $seconds seconds, $nanoseconds nanoseconds."</font><font color="#007700">;<br />}<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
  </P
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN126166"
></A
><H2
>注释</H2
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>本函数未在 Windows 平台下实现。</P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN126170"
></A
><H2
>参见</H2
><P
>&#13;   <A
HREF="function.sleep.html"
><B
CLASS="function"
>sleep()</B
></A
>,
   <A
HREF="function.usleep.html"
><B
CLASS="function"
>usleep()</B
></A
>,
   <A
HREF="function.set-time-limit.html"
><B
CLASS="function"
>set_time_limit()</B
></A
>
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