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PHP实现递归循环每一个目录程序

Jun 13, 2016 am 09:47 AM
phplistaccomplishcycledocumentfolderTable of contentsprogramwantrecursionTraverse

要遍历一个文件夹里面的所有目录,列出里面所有的文件,PHP本身自带的有一个readdir的函数,不过只能读取当前的目录,根据这个函数,我写了另外一个函数,用来实现我的需求。

 代码如下 复制代码

class listdir{
var $depth;
var $dirname;
var $list;
var $tostring;

function listdir($dir){
$this->dirname=$dir;
$this->depth=0;
$this->tostring=”";
}

//把结果保存进多维数组
function getlist($dir=”"){
if($dir==”")$dir=$this->dirname;
$d=@dir($dir);
while(false!==($item=$d->read()))
{
if($item!=”.”&&$item!=”..”)
{
$path=$dir.”/”.$item;
if(is_dir($path)){
$this->depth+=1;
$this->getlist($path);
}else{
$this->list[$this->depth][]=$item;
}
}
}
$this->list[$this->depth]['directory']=$dir;
$this->depth-=1;
$d->close();
return $this->list;
}

//字符窜化结果

function tostring($dir=”"){
if($dir==”")$dir=$this->dirname;
$d=@dir($dir);
$this->tostring.=”

    n”;
    $this->tostring.=”Directory:”.$dir.”n”;
    while(false!==($item=$d->read()))
    {
    if($item!=”.”&&$item!=”..”)
    {
    $path=$dir.”/”.$item;
    if(is_dir($path)){
    $this->depth+=1;
    $this->tostring($path);
    }else{
    $this->tostring.=”
  • ”.$item.”
  • n”;
    }
    }
    }
    $this->depth-=1;
    $d->close();
    $this->tostring.=”
n”;
return $this->tostring;
}
}
$wapdir=”jquery”;
$d=new listdir($wapdir);
echo $d->tostring();
?>

要删除一个空的目录很简单~一个
 
rmdir() 函数就可以搞定,但是要删除一个非空目录,将不能进行快速的删除,必须先将目录中文件删除,但是目录里可能还会有子目录所以要进行递归删除~下面是我的例子~
 

 代码如下 复制代码
function deletedir($dir){
      if(!handle=@opendir($dir)){     //检测要打开目录是否存在
               die("没有该目录");
      }
     while(false !==($file=readdir($handle))){
               if($file!=="."&&$file!==".."){       //排除当前目录与父级目录
                            $file=$dir .DIRECTORY_SEPARATOR. $file;
                            if(is_dir($file)){
                                  deletedir($file);
                            }else{
                                  if(@unlink($file)){
                                         echo "文件$file删除成功。
";
                                  }else{
                                          echo  "文件$file删除失败!
";
                                 }
                }
     }
    if(@rmdir($dir)){
           echo "目录$dir删除成功了。
n";
    }else{
           echo "目录$dir删除失败!
n";
  }
}
 
//测试程序
$dir="/var/www/test";
deletedir($dir);
?>
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