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chdir> <dio_write
Last updated: Sun, 25 Nov 2007

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Directory συναρτήσεις

Εισαγωγή

Απαιτήσεις

Δεν χρειάζονται εξωτερικές βιβλιοθήκες για να γίνει build αυτή η επέκταση.

Εγκατάσταση

Δεν χρειάζεται εγκατάσταση για αυτές τις συναρτήσεις, είναι μέρος του πυρήνα της PHP.

Ρυθμίσεις κατά την εκτέλεση

Αυτή η επέκταση δεν έχει directives ρύθμισης ορισμένα στο php.ini.

Τύποι Πόρων

Προκαθορισμένες Σταθερές

Αυτή η επέκταση δεν έχει σταθερές ορισμένες.

Δείτε επίσης

Για σχετικές συναρτήσεις, όπως οι dirname(), is_dir(), mkdir(), και rmdir(), ανατρέξτε στο Filesystem.

Table of Contents

  • chdir — Αλλάξτε κατάλογο
  • chroot — Αλλάζει τον root κατάλογο
  • dir — Class καταλόγων
  • closedir — Κλείσιμο της διαχείρισης του καταλόγου
  • getcwd — Επιστροφή του καταλόγου στον οποίο τώρα γίνεται εργασία
  • opendir — Ανοίγη τη διαχείριση καταλόγου
  • readdir — Διάβασε μία είσοδο από την handle του καταλόγου
  • rewinddir — Κάνε reset τη handle του καταλόγου
  • scandir — List files and directories inside the specified path


chdir> <dio_write
Last updated: Sun, 25 Nov 2007
 
add a note add a note User Contributed Notes
Κατάλογοι
billy
18-Feb-2008 01:22
msh at onliners dot dk's code should have

$dir.'/'.$entry everywhere instead of $dir.$entry

you need your system's directory separator, otherwise you'll get /my/pathfilename instead of correctly /my/path/filename
Jean-Paul Wattiaux
31-Aug-2007 08:08
Mine works as long as the samba volume is actually mounted. Having it listed in the "My Computer" window doesn't warrant that.
adrian
20-Aug-2007 02:33
Samba mounts under a Windows environment are not accessible using the mounted drive letter. For instance, if you have drive X: in Windows mounted to //example.local/shared_dir (where example.local is a *nix box running Samba), the following constructs

$dir = "X:\\data\\";
$handle = opendir( $dir );
or
$d = dir( $dir );

will return a warning message "failed to open dir: No error"

On the other hand, using the underlying mapping info works just fine. For example:

$dir = "//example.local/shared_dir/data";
$handle = opendir( $dir );
or
$d = dir( $dir );

Both cases do what they're expected to.
phdwight at yahoo dot com
27-Mar-2007 08:45
I have posted this same observation in scandir, and found out that it is not limited to scandir alone but to ALL directory functions.

Directory functions DOES NOT currently supports Japanese characters.
dkflbk at nm dot ru
14-Sep-2006 04:29
I wrote a simple backup script which puts all files in his folder (and all of the sub-folders) in one TAR archive...
(It's classic TAR format not USTAR, so filename and path to it can't be longer then 99 chars)
<?php
/***********************************************************
 *   Title:  Classic-TAR based backup script v0.0.1-dev
  **********************************************************/

Class Tar_by_Vladson {
    var
$tar_file;
    var
$fp;
    function
Tar_by_Vladson($tar_file='backup.tar') {
       
$this->tar_file = $tar_file;
       
$this->fp = fopen($this->tar_file, "wb");
       
$tree = $this->build_tree();
       
$this->process_tree($tree);
       
fputs($this->fp, pack("a512", ""));
       
fclose($this->fp);
    }
    function
build_tree($dir='.'){
       
$handle = opendir($dir);
        while(
false !== ($readdir = readdir($handle))){
            if(
$readdir != '.' && $readdir != '..'){
               
$path = $dir.'/'.$readdir;
                if (
is_file($path)) {
                   
$output[] = substr($path, 2, strlen($path));
                } elseif (
is_dir($path)) {
                   
$output[] = substr($path, 2, strlen($path)).'/';
                   
$output = array_merge($output, $this->build_tree($path));
                }
            }
        }
       
closedir($handle);
        return
$output;
    }
    function
process_tree($tree) {
        foreach(
$tree as $pathfile ) {
            if (
substr($pathfile, -1, 1) == '/') {
               
fputs($this->fp, $this->build_header($pathfile));
            } elseif (
$pathfile != $this->tar_file) {
               
$filesize = filesize($pathfile);
               
$block_len = 512*ceil($filesize/512)-$filesize;
               
fputs($this->fp, $this->build_header($pathfile));
               
fputs($this->fp, file_get_contents($pathfile));
               
fputs($this->fp, pack("a".$block_len, ""));
            }
        }
        return
true;
    }
    function
build_header($pathfile) {
        if (
strlen($pathfile) > 99 ) die('Error');
       
$info = stat($pathfile);
        if (
is_dir($pathfile) ) $info[7] = 0;
       
$header = pack("a100a8a8a8a12A12a8a1a100a255",
           
$pathfile,
           
sprintf("%6s ", decoct($info[2])),
           
sprintf("%6s ", decoct($info[4])),
           
sprintf("%6s ", decoct($info[5])),
           
sprintf("%11s ",decoct($info[7])),
           
sprintf("%11s", decoct($info[9])),
           
sprintf("%8s", " "),
            (
is_dir($pathfile) ? "5" : "0"),
           
"",
           
""
           
);
       
clearstatcache();
       
$checksum = 0;
        for (
$i=0; $i<512; $i++) {
           
$checksum += ord(substr($header,$i,1));
        }
       
$checksum_data = pack(
           
"a8", sprintf("%6s ", decoct($checksum))
            );
        for (
$i=0, $j=148; $i<7; $i++, $j++)
           
$header[$j] = $checksum_data[$i];
        return
$header;
    }
}

header('Content-type: text/plain');
$start_time = array_sum(explode(chr(32), microtime()));
$tar = & new Tar_by_Vladson();
$finish_time = array_sum(explode(chr(32), microtime()));
printf("The time taken: %f seconds", ($finish_time - $start_time));
?>
engin bzzzt biz
01-Feb-2006 12:07
To join directory and file names in a cross-platform manner you can use the following function.

function join_path()
{
        $num_args = func_num_args();
        $args = func_get_args();
        $path = $args[0];
       
        if( $num_args > 1 )
        {
            for ($i = 1; $i < $num_args; $i++)
            {
                $path .= DIRECTORY_SEPARATOR.$args[$i];
            }
        }
       
        return $path;
}

It should do the following:
$src = join_path( '/foo', 'bar', 'john.jpg' );
echo $src; // On *nix -> /foo/bar/john.jpg

$src = join_path( 'C:\www', 'domain.com', 'foo.jpg' );
echo $src; // On win32 -> C:\\www\\domain.com\\foo.jpg
msh at onliners dot dk
30-Jan-2006 03:49
I would like to present these two simple functions for generating a complete directory listing - as I feel the other examples are to restrictive in terms of usage.

function dirTree($dir) {
    $d = dir($dir);
    while (false !== ($entry = $d->read())) {
        if($entry != '.' && $entry != '..' && is_dir($dir.$entry))
            $arDir[$entry] = dirTree($dir.$entry.'/');
    }
    $d->close();
    return $arDir;
}

function printTree($array, $level=0) {
    foreach($array as $key => $value) {
        echo "<div class='dir' style='width: ".($level*20)."px;'>&nbsp;</div>".$key."<br/>\n";
        if(is_array($value))
            printTree($value, $level+1);
    }
}

Usage is as simple as this:
$dir = "<any directory you like>";
$arDirTree = dirTree($dir);
printTree($arDirTree);

It is easy to add files to the tree also - so enjoy.
Nicolas Merlet - admin(at)merletn.org
22-Jan-2006 07:34
Here is a very similar function to *scandir*, if you are still using PHP4...

This recursive function will return an indexed array containing all directories or files or both (depending on parameters). You can specify the depth you want, as explained below.

<?php

// $path : path to browse
// $maxdepth : how deep to browse (-1=unlimited)
// $mode : "FULL"|"DIRS"|"FILES"
// $d : must not be defined
 
function searchdir ( $path , $maxdepth = -1 , $mode = "FULL" , $d = 0 )
{
   if (
substr ( $path , strlen ( $path ) - 1 ) != '/' ) { $path .= '/' ; }     
  
$dirlist = array () ;
   if (
$mode != "FILES" ) { $dirlist[] = $path ; }
   if (
$handle = opendir ( $path ) )
   {
       while (
false !== ( $file = readdir ( $handle ) ) )
       {
           if (
$file != '.' && $file != '..' )
           {
              
$file = $path . $file ;
               if ( !
is_dir ( $file ) ) { if ( $mode != "DIRS" ) { $dirlist[] = $file ; } }
               elseif (
$d >=0 && ($d < $maxdepth || $maxdepth < 0) )
               {
                  
$result = searchdir ( $file . '/' , $maxdepth , $mode , $d + 1 ) ;
                  
$dirlist = array_merge ( $dirlist , $result ) ;
               }
       }
       }
      
closedir ( $handle ) ;
   }
   if (
$d == 0 ) { natcasesort ( $dirlist ) ; }
   return (
$dirlist ) ;
}

?>

chdir> <dio_write
Last updated: Sun, 25 Nov 2007
 
 
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