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yuweixian4230 发表于 2011-12-22 08:54

15 十二章日期

<br><div id="codeText" class="codeText"><ol style="margin:0 1px 0 0;padding:5px 0;" start="1" class="dp-css"><li><span style="color:#000000;"><span style="color:#0000CC;"><</span><span style="color:#0000CC;">?</span>php<br></span></li><li>
    <font color="#F00000" size="5"><span style="color:#0000CC;">/</span><span style="color:#0000CC;">/</span>默认设置为上海时区<br></font></li><li><font color="#F00000" size="5">
    date_default_timezone_set<span style="color:#0000CC;">(</span><span style="color:#0000CC;">'</span>Asia<span style="color:#0000CC;">/</span>Shanghai<span style="color:#0000CC;">'</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></font></li><li>
<font color="#F00000" size="5"><br></font></li><li><font color="#F00000" size="5">
    <span style="color:#0000CC;">/</span><span style="color:#0000CC;">/</span>1 checkdate 验证日期</font><br></li><li>
    echo <span style="color:#FF00FF;">"april 31,2007"</span><span style="color:#0000CC;">.</span><span style="color:#0000CC;">(</span>checkdate<span style="color:#0000CC;">(</span>4<span style="color:#0000CC;">,</span>31<span style="color:#0000CC;">,</span>27<span style="color:#0000CC;">)</span><span style="color:#0000CC;">?</span> <span style="color:#0000CC;">'</span>valid<span style="color:#0000CC;">'</span><span style="color:#0000CC;">:</span><span style="color:#0000CC;">'</span>invalid<span style="color:#0000CC;">'</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    echo <span style="color:#FF00FF;">"<br />"</span><span style="color:#0000CC;">;</span><br></li><li>
<br></li><li>
  <font color="#F00000" size="5">  <span style="color:#0000CC;">/</span><span style="color:#0000CC;">/</span>2 格式化日期和时间 <span style="color:#FF0000;">date</span></font><br></li><li>
    echo <span style="color:#FF0000;">date</span><span style="color:#0000CC;">(</span><span style="color:#FF00FF;">"m-d-Y"</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    echo <span style="color:#FF00FF;">"<br />"</span><span style="color:#0000CC;">;</span>    <br></li><li>
    echo <span style="color:#FF00FF;">"the time is"</span><span style="color:#0000CC;">.</span><span style="color:#FF0000;">date</span><span style="color:#0000CC;">(</span><span style="color:#FF00FF;">"h:i:s"</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    echo <span style="color:#FF00FF;">"<br />"</span><span style="color:#0000CC;">;</span><br></li><li>
<br></li><li>
  <font color="#F00000" size="5">  <span style="color:#0000CC;">/</span><span style="color:#0000CC;">/</span>了解当前时间的更多信息 gettimeofday</font><br></li><li>
    date_default_timezone_set<span style="color:#0000CC;">(</span><span style="color:#0000CC;">'</span>Asia<span style="color:#0000CC;">/</span>Shanghai<span style="color:#0000CC;">'</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    $<span style="color:#FF0000;">time</span> <span style="color:#0000CC;">=</span> gettimeofday<span style="color:#0000CC;">(</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    $GMToffset <span style="color:#0000CC;">=</span> $<span style="color:#FF0000;">time</span><span style="color:#0000CC;">[</span><span style="color:#0000CC;">'</span>minuteswest<span style="color:#0000CC;">'</span><span style="color:#0000CC;">]</span> <span style="color:#0000CC;">/</span> 60<span style="color:#0000CC;">;</span><br></li><li>
    printf<span style="color:#0000CC;">(</span><span style="color:#FF00FF;">"server location is %d hours west of GMT."</span><span style="color:#0000CC;">,</span><span style="color:#0000CC;">$</span>GMToffset<span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    echo <span style="color:#FF00FF;">"<br />"</span><span style="color:#0000CC;">;</span><br></li><li>
<br></li><li>
    <font color="#F00000" size="5"><span style="color:#0000CC;">/</span><span style="color:#0000CC;">/</span>时间戳</font><br></li><li>
    echo <span style="color:#FF0000;">time</span><span style="color:#0000CC;">(</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
    echo <span style="color:#FF00FF;">"<br />"</span><span style="color:#0000CC;">;</span><br></li><li>
    echo <span style="color:#FF0000;">date</span><span style="color:#0000CC;">(</span><span style="color:#FF00FF;">"F d,Y h:i:s"</span><span style="color:#0000CC;">,</span><span style="color:#FF0000;">time</span><span style="color:#0000CC;">(</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">)</span><span style="color:#0000CC;">;</span><br></li><li>
<span style="color:#0000CC;">?</span><span style="color:#0000CC;">></span></li></ol></div><br><div id="codeText" class="codeText"><ol style="margin:0 1px 0 0;padding:5px 0;" start="1" class="dp-css"><li><span style="color:#000000;">april 31<span style="color:#0000CC;">,</span>2007invalid<br></span></li><li>
08<span style="color:#0000CC;">-</span>25<span style="color:#0000CC;">-</span>2011<br></li><li>
the <span style="color:#FF0000;">time</span> is06<span style="color:#0000CC;">:</span>04<span style="color:#0000CC;">:</span>06<br></li><li>
server <span style="color:#FF0000;">location</span> <span style="color:#0000FF;">is</span> <span style="color:#0000CC;">-</span>8 hours west of GMT<span style="color:#0000CC;">.</span><br></li><li>
1314266646<br></li><li>
August 25<span style="color:#0000CC;">,</span>2011 06<span style="color:#0000CC;">:</span>04<span style="color:#0000CC;">:</span>06</li></ol></div><br><br><br>

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