爲什麼我不能得到文件和目錄的名稱？

Question

使用以下腳本，我嘗試打印這些目錄下所有目錄和文件的列表。但它並沒有這樣做。

# Snippet that lists all the directories and files under that directory 

$dir_list = scandir("/"); 
for($var=0;$var<count($dir_list);$var++) { 
    if(is_dir($dir_list[$var])) { 
     $dh = opendir($dir_list[$var]); 
     echo "Name of directory : ".$dir_list[$var]; 
     echo "<br />"; 
     while(false !== ($filename = readdir($dh))) { 
      echo $filename; 
      echo "<br />"; 
     } 
    } 
    echo $dir_list[$var];echo "<br />"; 
} 
#end 

相反，這是我得到的輸出。這是所有目錄的列表。當存在如此多的目錄時，if語句只執行一次。這是爲什麼 ？

 $AVG 
$RECYCLE.BIN 
.Trash-1000 
01 - Raanjhanaa - DownloadMing.SE.mp3 
05. TUNE YE PHOOL.mp3 
16. THUMRI (TRADITIONAL).mp3 
AVS Player 
Aashiqui 2 {2013} Full Audio Songs Mp3 320kbps 
Aye_Khuda_Ret_Ke_Sehar_-_(IndianWap.Mobi).mp3 
Baazigar - Chhupana Bhi Nahi Aata (Pankaj Udhas)-(DJmaza.in).mp3 
CV [Resume] templates 
DWNL_VID 
Delhi Belly 2011 Hindi 720p DVDRip x264 Ali Baloch Silver RG.mkv 
Name of directory : Devdas - Blu-Ray - 720p - x264 - [DDR] 
. 
.. 
Devdas (Sample) - Blu-Ray - 720p - x264 - [DDR].mkv 
Devdas (Screenshots) - Blu-Ray - 720p - x264 - [DDR] 
Devdas - Blu-Ray - 720p - x264 - [DDR].gif 
Devdas - Blu-Ray - 720p - x264 - [DDR].mkv 
Devdas - Blu-Ray - 720p - x264 - [DDR].nfo 
Devdas - Blu-Ray - 720p - x264 - [DDR] 
Dil-Se.avi 
Doc 
DwnlData 
Gangs of Wasseypur II 2012 Hindi 720p DvDRip CharmeLeon Silver RG.mkv 
Gayatri-Mantra-Anuradha-Paudwal[www.savevid.com].mp4 
Ghalib ghazal - 23.pdf 
Ghar_Gulzar_Aapki Aankhon_mein.mp3 
Gladiator[Extended.Edition]DvDrip.AC3[Eng]-aXXo 
Google Drive 
HD-Wallpapers 
Hanuman-Chalisa-by-Gulshan-Kumar[www.savevid.com].3gp 
I Am Kalam (2010) DVDRip(www.mastitorrents.com).avi 
IMG_20120526_191139.jpg 
Installed_Apps 
Internet Download Manager 6.05 Build 7 Final 
Jagjit Singh - Tera Bayaan Ghalib (2012) 128Kbps MP3.rar 
Jai-Radha-Hare-Krishna[www.savevid.com].3gp 
Java Persistence With Hibernate 2012 
Khamoshi 1966 
Lakshya.avi 
MahaMantra-Hare-Rama-Hare-Krishna-by-Jagjit-Singh[www.savevid.com].3gp 
New Folder 
New folder (2) 
OS images 
Om-Gan-Ganapataye-Namo-Namah[www.savevid.com].3gp 
Om-Namah-Shivay-(Beautiful-Bhajan-By-Jagjit-Singh)[www.savevid.com].3gp 
Pending 
PseudoCompiler.cnt 
PseudoCompiler.exe 
PseudoCompiler.hlp 
Ra-One 
Ravi Shankar 
Rhythm and Blues 
ST5UNST.LOG 
Shiv Kumar Sharma Torrent 
Shiv-Mahamrityunjaya-Mantra[www.savevid.com].3gp 
Shree-Hanuman-Chalisa-Anup-Jalota[www.savevid.com].mp4 
Special 26 - 2013 DVDRip XviD AC3 M-SuB xRG 
System Volume Information 
THE-GODFATHER.Part-3.DVDrip[vice] 
Taj-Mahal--Secrets-n-Mysteries[www.savevid.com].flv 
Tera Bayaan Ghalib Part 1.wmv 
Tera Bayaan Ghalib Part 2.wmv 
Tera byaan ghalib 
The Godfather - II 
The Godfather part 1.avi 
Untitled Folder 
VDI 
Vicky Donor - DVDRip - XviD - 1CDRip - [DDR] 
VideoLAN - VLC media player for Fedora.htm 
VideoLAN - VLC media player for Fedora_files 
Visual Fox Pro 9 
Visual Fox Pro 9.zip 
Windows_Movie_Maker 
adding security_niit_glassfish 
animated gifs 
flipkart 
found.000 
games_setup 
ghazals 
htmlProject 
httpd-2.2.17 
java project 
logs 
mehdi hassan...arz e niyaaz e isqh ke qabil nahi raha.mp3 
music 
music_videos 
niit 
non_music_vidoes 
old paper 
only jagjit 
pagefile.sys 
pics 
program works 
softwares 
suhail_1.2 
sunny01(www.songs.pk).mp3 
tie_1.JPG 
tie_2.jpg 

Answer 1

「/」代表基於unix的系統。你的似乎是Windows（「E：\」）。

嘗試改變scandir("/")到scandir('E:\')

Answer 2

應該是這樣，

$dir_list = scandir("/"); 

for($var=0;$var<count($dir_list);$var++) { 
    if(is_dir($dir_list[$var])) 
    { 
     $dh = opendir($dir_list[$var]); 
     echo "<b>Name of directory : ".$dir_list[$var].'</b><br>'; 
     if($dh!=false && $dh!= '.' && $dh!='..') 
     { 
      while(false != ($filename = readdir($dh))) { 
       echo $filename; 
      } 
     } 
    } 
    else 
    { 
     echo "Name of file : ".$dir_list[$var].'<br>'; 
    } 
} 

如果你使用的是Windows比scandir()方法，你應該通過目錄的絕對路徑。

Answer 3

至於你的問題是完全不同的，我做了其他答案：

1度，你需要遞歸 2℃，而不是用複雜的功能（執行opendir，readdir的）的SCANDIR足夠基於

您代碼：

<?php 

function displayRecursive($path){ 
    $dir_sep = DIRECTORY_SEPARATOR; 
    $path = rtrim($path, '/').'/'; // 
$dir_list = scandir($path); 
    echo '<ul>'; 
foreach($dir_list as $file){ 
     if ($file[0] == '.') 
      continue; 

     echo '<li>'; 
     if(is_dir($path.$dir_sep.$file)){ 
      echo "Name of directory : ".$dir_list[$var]; 
      displayRecursive($path.$dir_sep.$file); 
     } 
     else{ 
      echo $filename; 
     } 
     echo '</li>'; 
} 
    echo '</ul>'; 

} 
$first_dir = '/'; 
displayRecursive($first_dir)