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>time</H1
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><P
> (PHP 3, PHP 4, PHP 5)</P
>time -- 返回当前的 Unix 时间戳</DIV
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NAME="AEN30105"
></A
><H2
>说明</H2
>int <B
CLASS="methodname"
>time</B
> ( void )<BR
></BR
><P
> 返回自从 Unix 纪元（格林威治时间 1970 年 1 月 1 日 00:00:00）到当前时间的秒数。
</P
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><B
>提示: </B
>
自 PHP 5.1 起在 <CODE
CLASS="varname"
>$_SERVER['REQUEST_TIME']</CODE
>
中保存了发起该请求时刻的时间戳。
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> <TABLE
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><B
>例 1. <B
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>time()</B
> 例子</B
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><code><font color="#000000">
<font color="#0000BB"><?php<br />$nextWeek </font><font color="#007700">= </font><font color="#0000BB">time</font><font color="#007700">() + (</font><font color="#0000BB">7 </font><font color="#007700">* </font><font color="#0000BB">24 </font><font color="#007700">* </font><font color="#0000BB">60 </font><font color="#007700">* </font><font color="#0000BB">60</font><font color="#007700">);<br /> </font><font color="#FF8000">// 7 days; 24 hours; 60 mins; 60secs<br /></font><font color="#007700">echo </font><font color="#DD0000">'Now: '</font><font color="#007700">. </font><font color="#0000BB">date</font><font color="#007700">(</font><font color="#DD0000">'Y-m-d'</font><font color="#007700">) .</font><font color="#DD0000">"\n"</font><font color="#007700">;<br />echo </font><font color="#DD0000">'Next Week: '</font><font color="#007700">. </font><font color="#0000BB">date</font><font color="#007700">(</font><font color="#DD0000">'Y-m-d'</font><font color="#007700">, </font><font color="#0000BB">$nextWeek</font><font color="#007700">) .</font><font color="#DD0000">"\n"</font><font color="#007700">;<br /></font><font color="#0000BB">?></font>
</font>
</code></TD
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><P
>上例的输出类似于：</P
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>Now: 2005-03-30
Next Week: 2005-04-07</PRE
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>
</P
><P
> 参见 <A
HREF="function.date.html"
><B
CLASS="function"
>date()</B
></A
> 和 <A
HREF="function.microtime.html"
><B
CLASS="function"
>microtime()</B
></A
>。
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