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php 目录递归遍历程序_PHP教程

WBOY

发布： 2016-07-20 11:10:10

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731 人浏览过

一个朋友写的一款目录查找程序，可以根据用户输入的目录名称查到到指定目录或文件，同时还支持锁定目录哦，有需要的朋友可以参考一下。

代码如下

复制代码

class Finder{
private $key;
private $result;
private $previewLen = 50;
private $file_type = array('html','php','htm','txt');

function __construct($key){
$this->key = $key;
}

function find($folder){
  $this->result = array();

  if(is_array($folder)){
   foreach($folder as $f){
    $this->_find_in_folder($f);
   }
  }else{
   $this->_find_in_folder($folder, true);
  }

  return $this->result;
}

function _find_in_folder($folder,$bSub=false){
  foreach(glob($folder.DIRECTORY_SEPARATOR.'*') as $f){
   if (is_file($f)){
    $extend =explode("." , $f);
    $type = strtolower(end($extend));
    if(in_array($type,$this->file_type)){
     $fd = file_get_contents($f);
     $pos = strpos($fd,$this->key);
     if($pos!==false){
      $end = $pre = '...';
      $pos -= floor($this->previewLen/2);
      if($pos       $pre = '';
       $pos = 0;
      }

      $findata = substr($fd,$pos,$this->previewLen);
      $findata = str_replace($this->key,''.$this->key.'',$findata);
      $this->result[] = array('path'=>$f,'preview'=>$pre.$findata.$end);
     }
    }
    continue;
   }

   if($bSub && is_dir($f)){
    $this->_find_in_folder($f,true);
   }
  }
}

}

$cur_path = dirname(__FILE__);
if(isset($_GET['a'])){
$key = $_POST['key'];
if(!$key) die('关键字不能为空');

$cf = new Finder($key);

$in_folder = array();
$limit_folder = $_POST['limit_folder'];
if($limit_folder==1){
  if(!isset($_POST['folder']) || !$_POST['folder']) die('限定目录不能为空');
  $in_folder = $_POST['folder'];
  $ret = $cf->find($in_folder);
}else{
  $ret = $cf->find($cur_path);
}

echo "搜索[$key]结果：
";
if(!$ret) die('无');
foreach($ret as $p=>$f){
echo "$p. t$f[path] => $f[preview]
n";
}
exit();
}

$folder = array();
function readFolder($path){
global $folder;
$folder[] = $path;
foreach(glob($path.DIRECTORY_SEPARATOR.'*') as $f){
  if (is_dir($f)) {
   readFolder($f);
  }
}
}

readFolder($cur_path);
$folder_op = array();
foreach($folder as $path){
$folder_op[] = "";
}
$folder_op = implode($folder_op);
?>