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Homephp教程php手册PHP删除指定目录下的所有文件

/**
 * 删除指定目录下的所有文件
 *
 * @param String $dir  要进行操作的路径
 * 适合范围,只有用于文件夹内不存在子文件夹的情况下
 * 来源  DZ
 * 小佳(www.phpcina.cn)  整理 于 2006-06-26 
 */
function dir_clear($dir) {
    $directory = dir($dir);                //创建一个dir类(PHP手册上这么说的),用来读取目录中的每一个文件
    while($entry = $directory->read()) {   //循环每一个文件,并取得文件名$entry
        $filename = $dir.'/'.$entry;       //取得完整的文件名,带路径的
        if(is_file($filename)) {           //如果是文件,则执行删除操作
            @unlink($filename);
        }
    }
    $directory->close();                   //关闭读取目录文件的类
    result();
}  

 



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