php下载html文件，图片无法显示,麻烦各位大神帮帮忙

Question

<?php

session_start();

error_reporting(0);

$un = $_SESSION['username'];

require_once("../model/conn.php");

require_once '../function/npLog.php';

$report_dir = $_SERVER["DOCUMENT_ROOT"]."/report/FILES/";

$operation = $_GET['h'] == 1 ? "delete" : "download";

if($operation == "download") // 0

{

    $n = $_GET['n'];

    if($n == 1)

    {

        $type = "single";

        $format = "html";

    }

    else if($n == 2)

    {

        $type = "single";

        $format = "pdf";

    }

    else if($n == 3)

    {

        $type = "all";

        $format = "html";

    }

    else if($n == 4)

    {

        $type = "all";

        $format = "pdf";

    }

    if($type == "single") 

    {

        $filename = $_GET[filename];

        if (!file_exists($report_dir.$filename))//查看报表文件是否存在

        {    

            echo "can't find file";  

            exit;  

        }    

        if($format == "html")

        {

        $files = array($filename);

            download_html_report_files($report_dir.$filename, $files);

        }

        else if($format == "pdf")

        {

            download_pdf_files($report_dir.$filename);

        }

    }

    else if($type == "all") 

    {

    $file_path = $report_dir;

    set_time_limit(0);

        list($input_start_time,$input_end_time) = explode("_",$_REQUEST[startToend]);

        $start_time = date("Ymd",strtotime("$input_start_time"));

$end_time = date("Ymd",strtotime("$input_end_time"));

if($format == "pdf")

{

download_files($file_path,$start_time, $end_time,$format);

}

else if($format == "html")

{

download_files($file_path,$start_time,$end_time ,$format);

}

    }

}

else if($operation == "delete")

{

    $dir = $_SERVER["DOCUMENT_ROOT"].'/report/FILES/'; 

    $dir1 = $_SERVER["DOCUMENT_ROOT"].'/report/IMG/';

    $filename=$_GET['filename'];

    if(!file_exists($dir.$filename ))

    {    

        echo   "can't   find   file";  

        exit;  

    }    

    else

    { 

        $re2="删除报表".$filename."成功!";

        $myAudit['audit_type'] = "'报表管理'";

        $myAudit['usr_name'] = "'".$un."'";

        $myAudit['client_ip'] = "'".getenv('REMOTE_ADDR')."'";

        $myAudit['action_result'] = 1;

        $myAudit['action_desc'] = "' 系统管理员  ".$un.$re2." ' ";

        np_log($myAudit);

        $imgfilename2=substr($filename,-3,-1);

        if($imgfilename2=='pd')

        {

            unlink($dir . $filename);

            header("Location: ./FILES/index.php");

        }

        else 

        {

            $imgfilename=substr($filename,0,-5);

            $files = scandir($dir1, 1);

            foreach ($files as $index => $filename1)

            {

                $filename2=substr($filename1,0,strlen($imgfilename));

                if ($imgfilename == $filename2)

                {

                    $imgstring.=$dir1.$filename1." ";

                }

            }

            exec("rm -rf $imgstring");

            unlink($dir.$filename);

            header("Location: ./FILES/index.php");

        }

    }

}

function download_files($file_path, $start_time=null,$end_time=null ,$format)

{

$files = scandir($file_path, 1);

$suffix = ".$format";

$files_array = array();

foreach ($files as $index => $filename){

$pos = strpos($filename, $suffix);

if ($pos != false) {

if(strpos($filename,"_")){

$month_files = substr($filename,stripos($filename,"_")+1,8);

}else{

$month_files = substr($filename, 0, 8);

}

if($month_files >= $start_time && $month_files <= $end_time)

{

array_push($files_array, $filename);

}

}

}

if($format == "pdf")

{

download_pdf_files($file_path,$files_array,$start_time,$end_time);

}

else if($format == "html")

{

download_html_report_files($file_path,$files_array,$start_time,$end_time);

}

}

function download_pdf_files($file_path,$files_array,$start_time=null,$end_time=null)

{

    if(is_dir($file_path))

    {

        $today = date("YmdHis");

        $tmp_dir = "pdf_".$start_time."_".$end_time;

        $cmd = "cd $file_path;";

        $cmd .= "mkdir -p $tmp_dir;";

        foreach($files_array as $index => $file)

        {

        $cmd .= "cp -a $file_path$file $tmp_dir;";

      }

        $cmd .= "tar cvzf $tmp_dir.tgz $tmp_dir;";

        $cmd .= "rm -rf $tmp_dir;";

        exec($cmd);

        file_export($file_path.$tmp_dir.".tgz");

        $cmd = "rm -rf $tmp_dir.tgz;";

        exec($cmd);

    }

    else

    {

        file_export($file_path);

    }

}

function download_html_report_files($file_path,$files_array,$start_time=null,$end_time=null)

{

    if(is_dir($file_path))

    {

        $output_dir = "html_".$start_time."_".$end_time;

        $files_dir = $file_path;

    }

    else

    {

    $names = split("\.",basename($file_path));

      $output_dir =$names[0];

        $files_dir = dirname($file_path);

    }

    $cmd = "mkdir -p $output_dir/HTML;";

    $cmd .= "mkdir -p $output_dir/IMG;";

    $cmd .= "cp ".$files_dir."/htmreport.css ".$output_dir."/HTML;";

    foreach ($files_array as $index => $file)

    {

      $basename = split("\.", $file);

   

        $cmd .= "cp ".$files_dir."/".$basename[0].".html ".$output_dir."/HTML;";

        $image_files = get_html_image_files($basename[0]);

        $cmd .= "cp ";

        foreach ($image_files as $image_file) 

        {

            $cmd .= "$image_file "; 

        }

        $cmd .= " $output_dir/IMG/;";

    }

    $output_file = $output_dir.".tgz";

    $cmd .= "cd $output_dir;cd ..; tar cvzf ".$output_file." ".$output_dir.";";

    $cmd .= "rm -rf ".$output_dir.";";

    exec($cmd);

    file_export($output_file);

    exec("rm -rf $output_file");

}

function get_html_image_files($basename) 

{

    $timeinfo = substr($basename,-14,-1);

    $image_dir = $_SERVER[DOCUMENT_ROOT].'/report/IMG/';

    $image_files = array();

    $files = scandir($image_dir,1);

    foreach ($files as $file)

    {

        $image_basename = substr($file,0,strlen($timeinfo)); 

        if($image_basename == $timeinfo) $image_files[] = $image_dir.$file;

    }

    return $image_files;

}

function file_export($file)

{

   //First, see if the file exists

   if (!is_file($file)) { die("<b>404 File not found!</b>"); }

   

   //Gather relevent info about file

   $len = filesize($file);

   $filename = basename($file);

   $file_extension = strtolower(substr(strrchr($filename,"."),1));

   

   //This will set the Content-Type to the appropriate setting for the file

   switch( $file_extension ) {

       case "exe": $ctype="application/octet-stream"; break;

       case "zip": $ctype="application/x-zip-compressed"; break;

       case "rar": $ctype="application/x-rar"; break;

       default: $ctype="application/force-download";

   }

   

   //Begin writing headers

   header("Cache-Control:");

   header("Cache-Control: public");

   

   //Use the switch-generated Content-Type

   header("Content-Type: $ctype");

   if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE")) {

       # workaround for IE filename bug with multiple periods / multiple dots in filename

       # that adds square brackets to filename - eg. setup.abc.exe becomes setup[1].abc.exe

       $iefilename = preg_replace('/\./', '%2e', $filename, substr_count($filename, '.') - 1);

       header("Content-Disposition: attachment; filename=\"$iefilename\"");

       //header("Content-Range: $from-$to fsize");  加上压缩包头信息不正确

       //header("Content-Length: $content_size");   加上压缩包头信息不正确

   } else {

       header("Content-Disposition: attachment; filename=\"$filename\"");

       //header("Content-Range: $from-$to fsize");  加上压缩包头信息不正确

       //header("Content-Length: $content_size");   加上压缩包头信息不正确

   }

   header("Accept-Ranges: bytes");

   //header('Expires: '.gmdate("D, d M Y H:i:s", mktime(date("H")+2, date("i"), date("s"), date("m"), date("d"), date("Y"))).' GMT');

   

   $size=filesize($file);

   //open the file

   $fp=fopen("$file","rb");

   //ek to start of missing part

   fseek($fp,$range);

   //start buffered download

   while(!feof($fp)){

       //reset time limit for big files

       print(fread($fp,1024*8));

       //flush();   这个是多余的函数,加上会使压缩包下载不完整

       //ob_flush();  这个也是多余的函数,加上会使压缩包下载不完整

   }

   fclose($fp);

}

Answer 1

图片路径，图片路径，图片路径!