文件操作_遍历操作文件夹内所有文件

文件遍历函数：read_directory

function read_directory($dir,$floor=0)
{
   
    if(!is_dir($dir))
    {
        return false;
    }
    $handir=opendir($dir);
    while(($row=@readdir($handir))!==false)
    {
        
        $floor?$line=$floor-20:$floor=0;
        if($row!='.'&&$row!='..')
        {
           
            if(is_file($dir.'/'.$row))
            {
                if($floor>20)
                {
                    echo "<span style='display:block;float:left;".$floor."px;'><div style='".$line."px;height:20px;border-right:1px solid #000;float:left;'></div>--</span>";
                    echo "文件:".$dir.'/'.$row."<br/>";
                }
                else
                {
                    echo "文件:".$dir.'/'.$row."<br/>";
                }
            }
            else
            {
                
                if($floor>20)
                {
                    echo "<span style='display:block;float:left;".$floor."px;'><div style='".$line."px;height:20px;border-right:1px solid #000;float:left;'></div>--</span>";
                    echo "目录:".$row."<br>";
                    $func=__FUNCTION__;
                    $endfloor=$floor+20;
                    $func($dir.'/'.$row,$endfloor);  
                }
                else
                {
                    
                    echo "目录:".$row."<br>";
                    $func=__FUNCTION__;
                    $endfloor=$floor+20;
                    $func($dir.'/'.$row,$endfloor);
                }
            }
        }
    }
}

内容替换函数：rep

function rep($reg){
    $redata = [
      '/css//' => "__CS__/",
      '/js//' => "__JS__/",
      '/images//' => "__IMG__/",
      '/picture//' => "__PIC__/",
      '/gif//' => "__GIF__/"
    ];
    $content=file_get_contents($reg);
    $arr=[];
    foreach($redata as $pat=>$text)
    {
        preg_match_all($pat,$content,$arr);
        var_dump($arr);
        foreach($arr[0] as $key=>$val)
        {
            $content = preg_replace($pat,$text,$content);
        }
    }

    file_put_contents($reg,$content);
}