opendir
PLease disregard my last two posts. For the last one, if you're looking for files with .php extension, you also get files with any extension that ends with 'p'. I wrote the function in quite a haste and now I am too busy to fix it - so don't use it! it's no good.
readdir
(PHP 4, PHP 5)
readdir — Liest einen Eintrag aus einem Verzeichnis-Handle
Beschreibung
string readdir
([ resource
$dir_handle
] )Gibt den Dateinamen des nächsten Files des Verzeichnisses zurück. Die Dateinamen werden in der Reihenfolge zurück gegeben, in der sie innerhalb des Filesystems angelegt wurden.
Parameter-Liste
Rückgabewerte
Gibt bei Erfolg den Dateinamen zurück. Im Fehlerfall wird FALSE zurückgegeben.
Warnung
Diese Funktion kann sowohl das
boolsche FALSE zurückliefern, als auch einen nicht-boolschen Wert, welcher zu FALSE ausgewertet wird.
Weitere Informationen entnehmen Sie bitte dem Abschnitt über die
boolschen Typen. Benutzen Sie deshalb
den === Operator,
um den Rückgabewert dieser Funktion zu überprüfen.
Beispiele
Beispiel #1 Alle Dateien eines Verzeichnisses auflisten
Bitte beachten Sie die Art und Weise, in der die Rückgabewerte von
readdir() in untenstehenden Beispielen geprüft werden.
Wir testen explizit, ob der Rückgabewert identisch (also inhaltlich und
typgleich -- siehe Kapitel Vergleichs-Operatoren
für weitere Informationen) zu FALSE ist, andernfalls würde jeder
Verzeichnis-Eintrag, dessen Name als FALSE ausgewertet wird, das
Durchlaufen der Schleife beenden (z.B. ein Verzeichnis namens "0").
<?php
if ($handle = opendir('/path/to/files')) {
echo "Directory handle: $handle\n";
echo "Files:\n";
/* Das ist der korrekte Weg, ein Verzeichnis zu durchlaufen. */
while (false !== ($file = readdir($handle))) {
echo "$file\n";
}
/* Dies ist der FALSCHE Weg, ein Verzeichnis zu durchlaufen. */
while ($file = readdir($handle)) {
echo "$file\n";
}
closedir($handle);
}
?>
Beispiel #2 Listet alle Dateien des aktuellen Verzeichnisses auf und blendet dabei . und .. aus.
<?php
if ($handle = opendir('.')) {
while (false !== ($file = readdir($handle))) {
if ($file != "." && $file != "..") {
echo "$file\n";
}
}
closedir($handle);
}
?>
add a note
User Contributed Notesreaddir
moehbass at gmail dot com
12-Jul-2007 07:25
12-Jul-2007 07:25
moehbass at gmail dot com
12-Jul-2007 05:53
12-Jul-2007 05:53
Sorry,
In my last post, if you only want to list files with certain extensions, then see how many letters this extension is, add one to it, and subtract it from the strlen of the file name. Review script below for details.
moehbass at gmail dot com
12-Jul-2007 05:27
12-Jul-2007 05:27
Responding to:
johan dot mickelin at gmail dot com
31-May-2007 07:52
-------------------------------------------------------
If you want to list only a certain filetype, this case only jpg and gif files in an image directory
$dir = opendir ("../images");
while (false !== ($file = readdir($dir))) {
if (strpos($file, '.gif',1)||strpos($file, '.jpg',1) ) {
echo "$file <br />";
}
}
-----------------------------------------------------------------
This function would also echo files that have .gif or .jpg in their names such as myFile.gif.php (I don't know why I'd name a file like that, but I am just making a point, that's all folks!)
Perhaps a more exact way is to do the following:
...
while (false !== ($file = readdir($dir))) {
$lenOfFileName = strlen($file);
$extOffsetPos = $lenOfFileName - 5;
if (strpos($file, '.gif', $extOffsetPos) ||
strpos($file, '.jpg',$extOffsetPos) ) {
echo "$file <br />";
}
...
If your extensions are more than three letters, then increase the 5 to 6 (e.g. aspx) to 7 (e.g. php51) or whatever.
johan dot mickelin at gmail dot com
01-Jun-2007 04:52
01-Jun-2007 04:52
If you want to list only a certain filetype, this case only jpg and gif files in an image directory
$dir = opendir ("../images");
while (false !== ($file = readdir($dir))) {
if (strpos($file, '.gif',1)||strpos($file, '.jpg',1) ) {
echo "$file <br />";
}
}
schursin at gmail[deleteme] dot com
28-May-2007 03:42
28-May-2007 03:42
code:
<?php
function permission($filename)
{
$perms = fileperms($filename);
if (($perms & 0xC000) == 0xC000) { $info = 's'; }
elseif (($perms & 0xA000) == 0xA000) { $info = 'l'; }
elseif (($perms & 0x8000) == 0x8000) { $info = '-'; }
elseif (($perms & 0x6000) == 0x6000) { $info = 'b'; }
elseif (($perms & 0x4000) == 0x4000) { $info = 'd'; }
elseif (($perms & 0x2000) == 0x2000) { $info = 'c'; }
elseif (($perms & 0x1000) == 0x1000) { $info = 'p'; }
else { $info = 'u'; }
// владелец
$info .= (($perms & 0x0100) ? 'r' : '-');
$info .= (($perms & 0x0080) ? 'w' : '-');
$info .= (($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-'));
// группа
$info .= (($perms & 0x0020) ? 'r' : '-');
$info .= (($perms & 0x0010) ? 'w' : '-');
$info .= (($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-'));
// все
$info .= (($perms & 0x0004) ? 'r' : '-');
$info .= (($perms & 0x0002) ? 'w' : '-');
$info .= (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-'));
return $info;
}
function dir_list($dir)
{
if ($dir[strlen($dir)-1] != '/') $dir .= '/';
if (!is_dir($dir)) return array();
$dir_handle = opendir($dir);
$dir_objects = array();
while ($object = readdir($dir_handle))
if (!in_array($object, array('.','..')))
{
$filename = $dir . $object;
$file_object = array(
'name' => $object,
'size' => filesize($filename),
'perm' => permission($filename),
'type' => filetype($filename),
'time' => date("d F Y H:i:s", filemtime($filename))
);
$dir_objects[] = $file_object;
}
return $dir_objects;
}
?>
call:
<?php
print_r(dir_list('/path/to/you/dir/'));
?>
output sample:
Array
(
[0] => Array
(
[name] => api
[size] => 0
[perm] => drwxrwxrwx
[type] => dir
[time] => 28 May 2007 01:55:02
)
[1] => Array
(
[name] => classes
[size] => 0
[perm] => drwxrwxrwx
[type] => dir
[time] => 26 May 2007 00:56:44
)
[2] => Array
(
[name] => config.inc.php
[size] => 143
[perm] => -rw-rw-rw-
[type] => file
[time] => 26 May 2007 13:13:19
)
[3] => Array
(
[name] => index.php
[size] => 131
[perm] => -rw-rw-rw-
[type] => file
[time] => 26 May 2007 22:15:18
)
[4] => Array
(
[name] => modules
[size] => 0
[perm] => drwxrwxrwx
[type] => dir
[time] => 28 May 2007 00:47:40
)
[5] => Array
(
[name] => temp
[size] => 0
[perm] => drwxrwxrwx
[type] => dir
[time] => 28 May 2007 04:49:33
)
)
(Qube#php@Efnet)
15-May-2007 05:36
15-May-2007 05:36
<?php
// Sample function to recursively return all files within a directory.
// http://www.pgregg.com/projects/php/code/recursive_readdir.phps
Function listdir($start_dir='.') {
$files = array();
if (is_dir($start_dir)) {
$fh = opendir($start_dir);
while (($file = readdir($fh)) !== false) {
# loop through the files, skipping . and .., and recursing if necessary
if (strcmp($file, '.')==0 || strcmp($file, '..')==0) continue;
$filepath = $start_dir . '/' . $file;
if ( is_dir($filepath) )
$files = array_merge($files, listdir($filepath));
else
array_push($files, $filepath);
}
closedir($fh);
} else {
# false if the function was called with an invalid non-directory argument
$files = false;
}
return $files;
}
$files = listdir('.');
print_r($files);
?>
(Qube#php@Efnet)
14-May-2007 11:41
14-May-2007 11:41
Here is an updated version of preg_find() [which has been linked from the glob() man page for years] - this function should provide most of what you want back from reading files, directories, different sorting methods, recursion, and perhaps most powerful of all the ability to pattern match with a PCRE regex.
You can get preg_find here: http://www.pgregg.com/projects/php/preg_find/preg_find.php.txt
or if you prefer colourful .phps format: http://www.pgregg.com/projects/php/preg_find/preg_find.phps
or scoll down to the end of this note.
I wrote several examples on how to use it on my blog at: http://www.pgregg.com/forums/viewtopic.php?tid=73
simple glob() type replacement:
$files = preg_find('/./', $dir);
recursive?
$files = preg_find('/./', $dir, PREG_FIND_RECURSIVE);
pattern match? find all .php files:
$files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE);
sorted alphabetically?
$files = preg_find('/\.php$/D', $dir, PREG_FIND_RECURSIVE|PREG_FIND_SORTKEYS);
sorted in by filesize, in descending order?
$files = preg_find('/./', $dir,
PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTFILESIZE|PREG_FIND_SORTDESC);
$files=array_keys($files);
sorted by date modified?
$files = preg_find('/./', $dir,
PREG_FIND_RECURSIVE|PREG_FIND_RETURNASSOC |PREG_FIND_SORTMODIFIED);
$files=array_keys($files);
Ok, the PHP note says my note is too long, so please click on one of the above links to get it.
phpwizard-at-pech-dot-cz
04-Jul-2002 10:22
04-Jul-2002 10:22
It should work, but it'll be better to read section 13.1.3 Cache-control Mechanisms of RFC 2616 available at http://rfc.net/rfc2616.html before you start with confusing proxies on the way from you and the client.
Reading it is the best way to learn how proxies work, what should you do to modify cache-related headers of your documents and what you should never do again. :-)
And of course not reading RFCs is the best way to never learn how internet works and the best way to behave like Microsoft corp.
Have a nice day!
Jirka Pech
fridh at gmx dot net
10-Apr-2002 02:41
10-Apr-2002 02:41
Someone mentioned the infinite recursion when a symbolic link was found...
tip: is_link() is a nice function :)