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【PHP】 php获取文件的更新时间
作者: / 发布于2011/1/4/ 660
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            <pre style="line-height: 150%; font-family: Verdana, Monospace; font-size: 12px; font-weight: bold; margin-right: 10px"><span style="font-style: italic; color: #666666">/*</span>
<span style="font-style: italic; color: #666666">* @param string $file Filepath</span>
<span style="font-style: italic; color: #666666">* @param string $format dateformat</span>
<span style="font-style: italic; color: #666666">* @link http://www.php.net/manual/de/function.date.php</span>
<span style="font-style: italic; color: #666666">* @link http://www.php.net/manual/de/function.filemtime.php</span>
<span style="font-style: italic; color: #666666">* @return string|bool Date or Boolean</span>
<span style="font-style: italic; color: #666666">*/</span>

<span style="color: #0000ff">function</span> getFiledate<span style="color: #009900">(</span><span style="color: #000088">$file</span><span style="color: #339933">,</span> <span style="color: #000088">$format</span><span style="color: #009900">)</span> <span style="color: #009900">{</span>
   <span style="color: #0099cc">if</span> <span style="color: #009900">(</span><span style="color: blue">is_file</span><span style="color: #009900">(</span><span style="color: #000088">$file</span><span style="color: #009900">)</span><span style="color: #009900">)</span> <span style="color: #009900">{</span>
       <span style="color: #000088">$filePath</span> <span style="color: #339933">=</span> <span style="color: #000088">$file</span><span style="color: #339933">;</span>
       <span style="color: #0099cc">if</span> <span style="color: #009900">(</span><span style="color: #339933">!</span><span style="color: blue">realpath</span><span style="color: #009900">(</span><span style="color: #000088">$filePath</span><span style="color: #009900">)</span><span style="color: #009900">)</span> <span style="color: #009900">{</span>
           <span style="color: #000088">$filePath</span> <span style="color: #339933">=</span> <span style="color: #000088">$_SERVER</span><span style="color: #009900">[</span><span style="color: #0000ff">"DOCUMENT_ROOT"</span><span style="color: #009900">]</span><span style="color: #339933">.</span><span style="color: #000088">$filePath</span><span style="color: #339933">;</span>
   <span style="color: #009900">}</span>
       <span style="color: #000088">$fileDate</span> <span style="color: #339933">=</span> <span style="color: blue">filemtime</span><span style="color: #009900">(</span><span style="color: #000088">$filePath</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
       <span style="color: #0099cc">if</span> <span style="color: #009900">(</span><span style="color: #000088">$fileDate</span><span style="color: #009900">)</span> <span style="color: #009900">{</span>
           <span style="color: #000088">$fileDate</span> <span style="color: #339933">=</span> <span style="color: blue">date</span><span style="color: #009900">(</span><span style="color: #0000ff">"<span style="color: #006699; font-weight: bold">$format</span>"</span><span style="color: #339933">,</span><span style="color: #000088">$fileDate</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
           <span style="color: #0099cc">return</span> <span style="color: #000088">$fileDate</span><span style="color: #339933">;</span>
       <span style="color: #009900">}</span>
       <span style="color: #0099cc">return</span> <span style="color: #009900; font-weight: bold">false</span><span style="color: #339933">;</span>
   <span style="color: #009900">}</span>
   <span style="color: #0099cc">return</span> <span style="color: #009900; font-weight: bold">false</span><span style="color: #339933">;</span>
<span style="color: #009900">}</span></pre>
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