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PHP遍历文件夹与文件类及处理类用法实例_PHP

May 31, 2016 pm 07:29 PM
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本文实例讲述了PHP遍历文件夹与文件类及处理类用法,非常具有实用价值。分享给大家供大家参考。具体方法如下:

FindFile.class.php类文件用于遍历目录文件,具体代码如下:

<&#63;php 
/** 遍历文件夹及文件类 
*  Date:  2013-03-21 
*  Author: fdipzone 
*  Ver:  1.0 
*/ 
class FindFile{ 
 
  public $files = array();  // 存储遍历的文件 
  protected $maxdepth;    // 搜寻深度,0表示没有限制 
 
  /* 遍历文件及文件夹 
  *  @param String $spath   文件夹路径 
  *  @param int  $maxdepth 搜寻深度,默认搜寻全部 
  */ 
  public function process($spath, $maxdepth=0){ 
    if(isset($maxdepth) && is_numeric($maxdepth) && $maxdepth>0){ 
      $this->maxdepth = $maxdepth; 
    }else{ 
      $this->maxdepth = 0; 
    } 
    $this->files = array(); 
    $this->traversing($spath); // 遍历 
  } 
 
  /* 遍历文件及文件夹 
  *  @param String $spath 文件夹路径 
  *  @param int  $depth 当前文件夹深度 
  */ 
  private function traversing($spath, $depth=1){ 
    if($handle = opendir($spath)){ 
      while(($file=readdir($handle))!==false){ 
        if($file!='.' && $file!='..'){ 
          $curfile = $spath.'/'.$file; 
 
          if(is_dir($curfile)){ // dir 
            if($this->maxdepth==0 || $depth<$this->maxdepth){ // 判断深度 
              $this->traversing($curfile, $depth+1); 
            } 
          }else{ // file 
            $this->handle($curfile); 
          } 
        } 
      } 
      closedir($handle); 
    } 
  } 
 
  /** 处理文件方法 
  * @param String $file 文件路径 
  */ 
  protected function handle($file){ 
    array_push($this->files, $file); 
  } 
} 
&#63;> 

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UnsetBom.class.php用于清除utf8+bom文件的bom,即头三个字节 0xEF 0xBB 0xBF,继承FindFile类,具体代码如下:

<&#63;php 
/** 遍历所有文件,清除utf8+bom 0xEF 0xBB 0xBF 
*  Date:  2013-03-21 
*  Author: fdipzone 
*  Ver:  1.0 
*/ 
class UnsetBom extends FindFile{ 
 
  private $filetype = array(); // 需要处理的文件类型 
 
  // 初始化 
  public function __construct($filetype=array()){ 
    if($filetype){ 
      $this->filetype = $filetype; 
    } 
  } 
 
  /** 重写FindFile handle方法 
  *  @param String $file 文件路径 
  */ 
  protected function handle($file){ 
    if($this->check_ext($file) && $this->check_utf8bom($file)){ // utf8+bom 
      $this->clear_utf8bom($file);    // clear 
      array_push($this->files, $file);  // save log 
    } 
  } 
 
  /** 检查文件是否utf8+bom 
  *  @param String $file 文件路径 
  *  @return boolean 
  */ 
  private function check_utf8bom($file){ 
    $content = file_get_contents($file); 
    return ord(substr($content,0,1))===0xEF && ord(substr($content,1,1))===0xBB && ord(substr($content,2,1))===0xBF; 
  } 
 
  /** 清除utf8+bom 
  *  @param String $file 文件路径 
  */ 
  private function clear_utf8bom($file){ 
    $content = file_get_contents($file); 
    file_put_contents($file, substr($content,3), true); // 去掉头三个字节 
  } 
 
  /** 检查文件类型 
  *  @param String $file 文件路径 
  *  @return boolean 
  */ 
  private function check_ext($file){ 
    $file_ext = strtolower(array_pop(explode('.',basename($file)))); 
    if(in_array($file_ext, $this->filetype)){ 
      return true; 
    }else{ 
      return false; 
    } 
  } 
} 
&#63;> 

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去除utf8 bom头Demo遍历文件示例:

<&#63;php 
require('FindFile.class.php'); 
require('UnsetBom.class.php'); 
 
$folder = dirname(__FILE__); 
 
$obj = new UnsetBom(array('php','css','js')); // 文件类型 
$obj->process($folder); 
 
print_r($obj->files); 
&#63;>

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希望本文所述对大家PHP程序设计的学习有所帮助。

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