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删除数据库中不存在的文件解决思路

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Release： 2016-06-13 12:01:10
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删除数据库中不存在的文件
有时候，数据库中没有记录这个文件了，可是文件夹中还有存在，怎么用php写一段代码，执行了之后就会删除这些文件的
------解决方案--------------------

foreach(glob('目录/*) as $f) {<br />  $rs = mysql_query("select * from 表 where 字段='$f'");<br />  if(! mysql_num_rows($rs)) unlink($f);<br />}
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------解决方案--------------------
首先将数据库中存在的文件写到一个列表
然后编历文件夹，当文件在列表中则不处理，如不在列表中，则执行删除动作。

Related labels：
foreach mysql nbsp select unlink
source：php.cn
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