代码大全-php

获取磁盘空间

<?php
function calc_size($dir){//Calculates the disk size used by the directory, including all sub-folders and files in it.
    if(is_file($dir)){
        return filesize($dir);
    }elseif(!is_dir($dir)){
        return 0;
    }
    $size=0;
    @$dh=opendir($dir); //get dir handler
    while($file=@readdir($dh)){ //loop files and sub-folders under this directory
        if($file!="." and $file != ".."){//not the current or upper directory
            $path=$dir."/".$file;
            if(is_dir($path)){
                $size+=calc_size($path); //recursive invocation
            }elseif(is_file($path)){
                $size+=filesize($path);
            }
        }
    }
    @closedir($dh);
    return $size;
}

#use example:
$dir=".";
$dir_size=calc_size("$dir");
echo "Total size for \"".realpath($dir)."\": ".$dir_size." BYTE.";
?>

 

删除指定目录

 

<?php
function full_rmdir($dir){//Fully removes the directory, including all sub-folders and files in it.
    if(is_file($dir)){
        return unlink($dir);
    }elseif(!is_dir($dir)){
        return false;
    }

    if($dh=opendir($dir)){
        $old_cwd=getcwd();
        chdir($dir);

        while ($file=readdir($dh)) {
            if($file=='.' || $file=='..') continue;
            if (is_dir($file)) {
                if(!full_rmdir($file)) return false;
            }else{
                if(!unlink($file)) return false;
            }
        }

        closedir($dh);
        chdir($old_cwd);
        if(!rmdir($dir)) return false;

        return true;
    }else{
        return false;
    }

}

#use example:
$dir="test";
if(full_rmdir("$dir")){
    echo "Delete succeed!";
}else{
    echo "Delete failed!";
}

?>

 

持续更新中

 

持续更新中

 

持续更新中