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php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>time_sleep_until</H1
><DIV
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><A
NAME="AEN126177"
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><P
>    (PHP 5 &#62;= 5.1.0RC1)</P
>time_sleep_until&nbsp;--&nbsp;
   Make the script sleep until the specified time
  </DIV
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CLASS="refsect1"
><A
NAME="AEN126180"
></A
><H2
>说明</H2
>bool <B
CLASS="methodname"
>time_sleep_until</B
> ( float timestamp )<BR
></BR
><P
>&#13;   Makes the script sleep until the specified
   <CODE
CLASS="parameter"
>timestamp</CODE
>. 
  </P
></DIV
><DIV
CLASS="refsect1"
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NAME="AEN126190"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><CODE
CLASS="parameter"
>timestamp</CODE
></DT
><DD
><P
>&#13;       The timestamp when the script should wake.
      </P
></DD
></DL
></DIV
>
  </P
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CLASS="refsect1"
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NAME="AEN126199"
></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
></DIV
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CLASS="refsect1"
><A
NAME="AEN126204"
></A
><H2
>错误／异常</H2
><P
>&#13;   If the specified <CODE
CLASS="parameter"
>timestamp</CODE
> is in the past, this
   function will generate a <TT
CLASS="constant"
><B
>E_WARNING</B
></TT
>.
  </P
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><H2
>范例</H2
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><B
>例 1. A <B
CLASS="function"
>time_sleep_until()</B
> example</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br /></font><font color="#FF8000">//returns false and generates a warning<br /></font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">time_sleep_until</font><font color="#007700">(</font><font color="#0000BB">time</font><font color="#007700">()-</font><font color="#0000BB">1</font><font color="#007700">));<br /><br /></font><font color="#FF8000">// may only work on faster computers, will sleep up to 0.2 seconds<br /></font><font color="#0000BB">var_dump</font><font color="#007700">(</font><font color="#0000BB">time_sleep_until</font><font color="#007700">(</font><font color="#0000BB">time</font><font color="#007700">()+</font><font color="#0000BB">0.2</font><font color="#007700">));<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
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><H2
>注释</H2
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>
    All signals will be delivered after the script wakes up.
   </P
></BLOCKQUOTE
></DIV
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>注意: </B
>本函数未在 Windows 平台下实现。</P
></BLOCKQUOTE
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></A
><H2
>参见</H2
><P
>&#13;   <P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><A
HREF="function.sleep.html"
><B
CLASS="function"
>sleep()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.usleep.html"
><B
CLASS="function"
>usleep()</B
></A
></TD
></TR
><TR
><TD
><A
HREF="function.time-nanosleep.html"
><B
CLASS="function"
>time_nanosleep()</B
></A
></TD
></TR
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></P
>
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