PHP目录的遍历,目录大小,目录删除,目录剪切,目录复制操作

<?php
/*
*    Version 1.0
*    2014-12-11
*    文件夹的操作
*    删除，大小统计，移动，复制
*    文件夹的分割使用linux方式
*    
*/
//文件间的删除
function delete_dir($dir){
    $dir = rtrim(str_replace("\\","/",$dir),'/').'/';//统一格式，避免格式问题出错
    if(!file_exists($dir)){
        exit("{$dir} is not exists!Check your input!");
    }
    $dh = opendir($dir);
    readdir($dh);
    readdir($dh);
    while($fileName = readdir($dh)){
        $newFileName = $dir.$fileName;
        if(is_file($newFileName)){
            if(unlink($newFileName)){
                echo 'File Delete '.$newFileName.' Successfully!<br />';
            }
        }else if(is_dir($newFileName)){
            $newDir = $newFileName.'/';
            delete_dir($newDir);
        }else{
            echo "{$newFileName} Unkown File Type!<br />";
        }
    }
    closedir($dh);
    if(rmdir($dir)){
        echo 'Delete Dir '.$dir.' Successfully!<hr />';
    }
}
//文件夹大小统计
function calc_dir($dir){
    $dir = rtrim(str_replace("\\","/",$dir),'/').'/';
    if(!file_exists($dir)){
        exit("{$dir} is not exists!Check your input!");
    }
    $dh = opendir($dir);
    $size = 0;
    readdir($dh);
    readdir($dh);
    while($fileName = readdir($dh)){
        $newFileName = $dir.$fileName;
        if(is_file($newFileName)){
            $size += filesize($newFileName);
        }else if(is_dir($newFileName)){
            $newDir = $newFileName.'/';
            $size += calc_dir($newDir);
        }else{
            echo "{$newFileName} Unkown File Type!<br />";
        }
    }
    closedir($dh);
    return $size;
}
//文件夹的移动
function cut_dir($dir,$des){
    //$dir待移动目录，$des目标目录
    if(!file_exists($dir)){
        exit($dir.' is not exists!Please check your input!');
    }
    if(!file_exists($des)){
        mkdir($des);
    }
    $dir = rtrim(str_replace("\\","/",$dir),'/');
    if(strrpos($dir,'/')){
        $subdir = substr($dir,strrpos($dir,'/')+1);
    }else{
        $subdir = $dir;
    }
    $dessub = rtrim(str_replace("\\","/",$des),"/").'/'.$subdir.'/';
    $dir = $dir.'/';
    if(!file_exists($dessub)){
        mkdir($dessub);
    }
    $dh = opendir($dir);
    readdir($dh);
    readdir($dh);
    while($fileName = readdir($dh)){
        $newFileName = $dir.$fileName;
        if(is_file($newFileName)){
            if(rename($newFileName,$dessub.$fileName)){
                echo $newFileName.'已经移动完成!<br />';
            }
        }
        if(is_dir($newFileName)){
            cut_dir($newFileName,$dessub);
        }
    }
    closedir($dh);
    if(rmdir($dir)){
        echo $dir.'内的文件已经全部移动完成！<hr />';
    }
}
//文件夹的复制
function copy_dir($dir,$des){
    //$dir待移动目录，$des目标目录
    if(!file_exists($dir)){
        exit($dir.' is not exists!Please check your input!');
    }
    if(!file_exists($des)){
        mkdir($des);
    }
    $dir = rtrim(str_replace("\\","/",$dir),'/');
    if(strrpos($dir,'/')){
        $subdir = substr($dir,strrpos($dir,'/')+1);
    }else{
        $subdir = $dir;
    }
    $dessub = rtrim($des).'/'.$subdir.'/';
    $dir = $dir.'/';
    if(!file_exists($dessub)){
        mkdir($dessub);
    }
    $dh = opendir($dir);
    readdir($dh);
    readdir($dh);
    while($fileName = readdir($dh)){
        $newFileName = $dir.$fileName;
        if(is_file($newFileName)){
            if(copy($newFileName,$dessub.$fileName)){
                echo $newFileName.'已经拷贝完成!<br />';
            }
        }
        if(is_dir($newFileName)){
            copy_dir($newFileName,$dessub);
        }
    }
    closedir($dh);
}