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Understanding of PHP traversal of folders, file classes and processing classes
Understanding of PHP traversal of folders, file classes and processing classes
FindFile.class.php
Used to traverse directory files
<?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);
}
}
?>UnsetBom.class .php Used to clear the bom of utf8 bom files, that is, the first three bytes 0xEF 0xBB 0xBF, inherit the FindFile class
<?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;
}
}
}
?>Demo unset utf8 bom
<?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); ?>
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