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<title><![CDATA[PHP的is_writeable() 函数判断文件是否存在]]></title> 
<author>jed &lt;jed521@163.com&gt;</author>
<category><![CDATA[代码编程]]></category>
<pubDate>Thu, 09 Apr 2009 11:40:31 +0000</pubDate> 
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	is_writeable() 函数判断指定的文件是否可写。<br/><br/>该函数是 is_writable() 函数的别名。<br/><br/>语法<br/><br/>is_writeable(file)<br/><br/>说明<br/>如果文件存在并且可写则返回 true。file 参数可以是一个允许进行是否可写检查的目录名。<br/><br/><div class="code"><br/><br/>&lt;?php<br/>$file = &quot;test.txt&quot;;<br/>if(is_writeable($file))<br/>&nbsp;&nbsp;&#123;<br/>&nbsp;&nbsp;echo (&quot;$file is writeable&quot;);<br/>&nbsp;&nbsp;&#125;<br/>else<br/>&nbsp;&nbsp;&#123;<br/>&nbsp;&nbsp;echo (&quot;$file is not writeable&quot;);<br/>&nbsp;&nbsp;&#125;<br/>?&gt;<br/><br/></div><br/>Tags - <a href="http://www.dzhope.com/tags/php/" rel="tag">php</a> , <a href="http://www.dzhope.com/tags/%25E5%2587%25BD%25E6%2595%25B0/" rel="tag">函数</a>
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<title><![CDATA[[评论] PHP的is_writeable() 函数判断文件是否存在]]></title> 
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<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
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