PHP recursive directory traversal implementation program

PHP itself has a readdir function, but it can only read the current directory. Based on this function, I wrote another function to achieve my needs. The principle of the function is very simple, mainly using recursive calls.

The code is as follows

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.=”

”.$item.”

n”;
return $this->tostring;
}
}
$wapdir=”jquery”;
$d=new listdir($wapdir);
echo $d->tostring();
?>

Copy code

class listdir{

var $depth;
var $dirname;

var $list;

代码如下

复制代码

function mkdirs($dir)
{
if(!is_dir($dir))
{
if(!mkdirs(dirname($dir))){
return false;
}
if(!mkdir($dir,0777)){
return false;
}
}
return true;
}
mkdirs('div/css/layout');

同样的思路，php用rmdir和unlink递归删除多级目录的代码：

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

$this->tostring=””;

$this->getlist($path); }else{ $this->list[$this->depth][]=$item;

}

} } $this->list[$this->depth]['directory']=$dir; $this->depth-=1; $d->close(); return $this->list; } //Character channeling result function tostring($dir=""){ if($dir==””)$dir=$this->dirname; $d=@dir($dir); $this->tostring.=”

”.$item.”

n”; return $this->tostring; } } $wapdir=”jquery”; $d=new listdir($wapdir); echo $d->tostring(); ?> Recursively create multi-level directories 1. First determine whether the bottom directory div/css/layout exists; 2. Determine whether the upper directory div/css of div/css/layout exists. If it does not exist, use div/css as a parameter to proceed recursively The following is the program code:

The code is as follows

Copy code

Related labels：

php readdir function accomplish of Table of contents program Bring your own read recursion Traverse

source：php.cn

Previous article：PHP regular expression verification email_PHP tutorial Next article：Program to randomly generate a set of non-repeating numbers in PHP_PHP Tutorial

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

PHP recursive directory traversal implementation program_PHP tutorial