php 目录递归遍历程序

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){ $folder_op[] = "$path"; } $folder_op = implode($folder_op); ?> 搜索关键字： 搜索目录： 是否限定以上选择的目录：是 否 =