fileperms
Though probably slower, strlen(file_get_contents("file.txt")) might give the same results.
filesize
(PHP 4, PHP 5)
filesize — Vrací velikost souboru
Popis
int filesize ( string $filename )Vrací velikost souboru, při chybě FALSE.
Výsledek této funkce je cachován. Více informací - viz clearstatcache().
add a note
User Contributed Notesfilesize
emailfire at gmail dot com
11-Aug-2007 04:34
11-Aug-2007 04:34
Radon8472
10-Aug-2007 05:16
10-Aug-2007 05:16
The last line shuold be:
file<4GB = SIGNED: -100662784 UNSIGNED: 4194304512
files greater than 4 GB an smaller than 6 will be positive again, but 4 GB to small ^^
Radon8472
10-Aug-2007 04:03
10-Aug-2007 04:03
the fastest way to get the correct filesize in windows an linux would be this:
<?php
echo sprintf("%u", filesize($file));
?>
It prints the result of filesize as UNSIGNED INT so it can be until 4GB.
The reason is, SIGNED INT runs until 2GB and flips to -2GB watch following:
file<2GB = SIGNED: 1048576512 UNSIGNED: 1048576512
file>2GB = SIGNED: -2100140103 UNSIGNED: 2194827193
file>4GB = SIGNED: -100662784 UNSIGNED: 4194304512
p.s. I found this at: http://www.php.net/manual/en/function.filesize.php
md2perpe at gmail dot com
17-Jul-2007 02:29
17-Jul-2007 02:29
Another way to get a filesize > 2GB on Linux:
<?php
$size = trim(`stat -c%s $file_path`);
?>
coolmax1 at poczta dot fm
29-Jun-2007 02:55
29-Jun-2007 02:55
@l0co at wp dot pl:
fopen with w+:
Open for reading and writing; place the file pointer at the beginning of the file and truncate the file to zero length. If the file does not exist, attempt to create it.
in the second case, it will be:
<?php
$f = fopen($filename, 'w+'); // Now file specified in the $filename will be zero byte length
echo filesize($filename); //now filesize return zero
fclose($f);
?>
Did you mean that or something other?
BIZARREdotBG[at]GMAILdotCOM
29-Jun-2007 03:18
29-Jun-2007 03:18
Here is a simple addition to the original example that i have made.
First of all i must mention that i need to list all files in a dir and i do know all files names.
Because the filenames contains an INT at the same place in every file's name i use $n++ to generate the file names.
The code:
<?php
// outputs e.g. bits_01.jpg: 0.05 kb
//lets asign a value of 1 so we can start with file bits_01.jpg
$n = 1;
//the last file is bits_09.jpg so i call the WHILE until $n gets a value of 9
while ($n < 10) {
//using $n in each file's name
$filename = 'bits_0'.$n.'.jpg';
//getting the file size - from original example
$size = filesize($filename);
//while i don't wan't the result in bytes instead i divide by 1024 to print it out in kilo bytes (if you need it in MB then divide it by 1048576
//at the same line we round the result to the fourth sign after the comma
$sizemb = round(($size/1024),4);
//printing the result
//filename : size MB and brake to print next on the next line
echo $filename . ': ' . $sizemb . ' kb<br />';
//now after i've printed the first file and it's size, we proceed to the next one
$n++;
}
?>
Hope it is useful to someone.
P.S
Please excuse my bad English :-)
Robin Leffmann
26-Jun-2007 05:49
26-Jun-2007 05:49
Here's a dodgy little snippet I made to find out how much disk space (in 1K-blocks) any chosen node - file or directory - occupies in the file system..
function nodesize( $node )
{
if( !is_readable($node) ) return false;
$blah = exec( "/usr/bin/du -sk $node" );
return substr( $blah, 0, strpos($blah, 9) );
}
The character I search for with strpos() is a tab, as this is what 'du' on OpenBSD uses to separate size and node in the output - this might be whitespaces in other *nixes/distributions.
medhefgo at googlemail dot com
02-Jun-2007 06:02
02-Jun-2007 06:02
I created another dirsize() function which doesn't use recursion.
I gained a ~2-3% performance boost while it uses ~50% lesser memory!
<?php
function dirsize($dirname) {
if (!is_dir($dirname) || !is_readable($dirname)) {
return false;
}
$dirname_stack[] = $dirname;
$size = 0;
do {
$dirname = array_shift($dirname_stack);
$handle = opendir($dirname);
while (false !== ($file = readdir($handle))) {
if ($file != '.' && $file != '..' && is_readable($dirname . DIRECTORY_SEPARATOR . $file)) {
if (is_dir($dirname . DIRECTORY_SEPARATOR . $file)) {
$dirname_stack[] = $dirname . DIRECTORY_SEPARATOR . $file;
}
$size += filesize($dirname . DIRECTORY_SEPARATOR . $file);
}
}
closedir($handle);
} while (count($dirname_stack) > 0);
return $size;
}
?>
stirol at gmail dot com
01-Jun-2007 04:16
01-Jun-2007 04:16
Just to notice: open_basedir is in effect on this function ;)
plyyyy [AT] gmail [DOT] com
24-Apr-2007 03:54
24-Apr-2007 03:54
simple addition to function remotefsize by Josh Finlay(http part):
(sometimes servers send headers in lower case)
if (($sch == "http") || ($sch == "https")) {
$headers = array_change_key_case(get_headers($url, 1),CASE_LOWER);
if ((!array_key_exists("content-length", $headers))) { return false; }
return $headers["content-length"];
}
ibitgsm at gmail dot com
25-Feb-2007 06:55
25-Feb-2007 06:55
Note that functions written in PHP which get directory size recursively are much slower than just calling `du`.
I hope this short code snipet will help someone:)
<?php
function dirsize($path)
{
$old_path = getcwd();
if(!is_dir($old_path."/".$path)) return -1;
$size = trim(shell_exec("cd \"".$old_path."/".$path."\"; du -sb; cd \"".$old_path."\";"), "\x00..\x2F\x3A..\xFF");
return $size;
}
P.S. trim() remove here all nonprintable an non-digit chars which appear in the output of `du`
?>
wielkiegie at gmail dot com
30-Jan-2007 04:42
30-Jan-2007 04:42
There is a lot of functions for size of dir. But drive operations are slow, so if you want use those functions many times in one script, it's too slow. You can use this small function instead:
<?php
function dirsize($dir,$buf=2)
{
static $buffer;
if(isset($buffer[$dir]))
return $buffer[$dir];
if(is_file($dir))
return filesize($dir);
if($dh=opendir($dir))
{
$size=0;
while(($file=readdir($dh))!==false)
{
if($file=='.' || $file=='..')
continue;
$size+=dirsize($dir.'/'.$file,$buf-1);
}
closedir($dh);
if($buf>0)
$buffer[$dir]=$size;
return $size;
}
return false;
}
?>
What does it do? It save size in static array to cache result. You can choose deep value (e.q. if you want cache only first dir, use dirsize($dirname,1);).
Randy Tayler
11-Jan-2007 02:37
11-Jan-2007 02:37
9U's snippet actually returns an array for Content-Length.
To get the filesize in bytes you'd want to say
$filesize = $ary_header['Content-Length'][1];
Josh Finlay <josh at glamourcastle dot com>
12-Nov-2006 12:22
12-Nov-2006 12:22
I know there has been alot of remote filesize snippets posted, but I'll post mine also.
It supports HTTP/HTTPS/FTP/FTPS and detects which type it should use. It needs --enable-ftp for the FTP/FTPS functions.
I hope this works for someone.
<?php
function remotefsize($url) {
$sch = parse_url($url, PHP_URL_SCHEME);
if (($sch != "http") && ($sch != "https") && ($sch != "ftp") && ($sch != "ftps")) {
return false;
}
if (($sch == "http") || ($sch == "https")) {
$headers = get_headers($url, 1);
if ((!array_key_exists("Content-Length", $headers))) { return false; }
return $headers["Content-Length"];
}
if (($sch == "ftp") || ($sch == "ftps")) {
$server = parse_url($url, PHP_URL_HOST);
$port = parse_url($url, PHP_URL_PORT);
$path = parse_url($url, PHP_URL_PATH);
$user = parse_url($url, PHP_URL_USER);
$pass = parse_url($url, PHP_URL_PASS);
if ((!$server) || (!$path)) { return false; }
if (!$port) { $port = 21; }
if (!$user) { $user = "anonymous"; }
if (!$pass) { $pass = "phpos@"; }
switch ($sch) {
case "ftp":
$ftpid = ftp_connect($server, $port);
break;
case "ftps":
$ftpid = ftp_ssl_connect($server, $port);
break;
}
if (!$ftpid) { return false; }
$login = ftp_login($ftpid, $user, $pass);
if (!$login) { return false; }
$ftpsize = ftp_size($ftpid, $path);
ftp_close($ftpid);
if ($ftpsize == -1) { return false; }
return $ftpsize;
}
}
?>
ming
04-Sep-2006 02:25
04-Sep-2006 02:25
the "remote file size" snippet below is cool but only works in php5 since get_headers() is not supported in php4.
9U
24-Aug-2006 03:12
24-Aug-2006 03:12
################################################
# Remote file size
$filename = 'http://www.url.com/image.jpg';
$ary_header = get_headers($filename, 1);
$filesize = $ary_header['Content-Length'];
$type = $ary_header['Content-Type'];
rico at ws5 dot org
08-Aug-2006 12:41
08-Aug-2006 12:41
To get the size of files above 2GB you can use the linux-command filesize like this:
<?php
function real_filesize_linux($file) {
@exec("filesize $file",$out,$ret);
if ( $ret <> '0' ) return FALSE;
else return($out[0]);
}
?>
kaspernj at gmail dot com
18-Jul-2006 06:43
18-Jul-2006 06:43
If you want to get the actual filesize for a size above 2 gb in Windows, you can use the COM-extensions in PHP.
An example is as follows:
<?
function knj_filesize($file){
if (file_exists($file)){
$fsobj = new COM("Scripting.FileSystemObject");
$file = $fsobj->GetFile($file);
$var = ($file->Size) + 1 - 1;
return $var;
}else{
echo "File does not exist.\n";
return false;
}
}
?>
This will return the corrent filesize. And it is very useful with PHP-GTK applications, where you want to use the filesize for larger files.
This example also works for files over a Windows-network. Try this example with the function:
<?
echo knj_filesize("//mycomputer/music/Track1.mp3");
?>
Happy hacking :)
core58 at mail dot ru
14-Apr-2006 08:21
14-Apr-2006 08:21
some notes and modifications to previous post.
refering to RFC, when using HTTP/1.1 your request (either GET or POST or HEAD) must contain Host header string, opposite to HTTP/1.1 where Host ain't required. but there's no sure how your remote server would treat the request so you can add Host anyway (it won't be an error for HTTP/1.0).
host value _must_ be a host name (not CNAME and not IP address).
this function catches response, containing Location header and recursively sends HEAD request to host where we are moved until final response is met.
(you can experience such redirections often when downloading something from php scripts or some hash links that use apache mod_rewrite. most all of dowloading masters handle 302 redirects correctly, so this code does it too (running recursively thru 302 redirections).)
[$counter302] specify how much times your allow this function to jump if redirections are met. If initial limit (5 is default) expired -- it returns 0 (should be modified for your purposes whatever).0
ReadHeader() function is listed in previous post
(param description is placed there too).
<?php
function remote_filesize_thru( $ipAddress, $url, $counter302 = 5 )
{
$socket = fsockopen( "10.233.225.2", 8080 );
if( !$socket )
{
// failed to open TCP socket connection
// do something sensible here besides exit();
echo "<br>failed to open socket for [$ipAddress]";
exit();
}
// just send HEAD request to server
$head = "HEAD $url HTTP/1.0\r\nConnection: Close\r\n\r\n";
// you may use HTTP/1.1 instead, then your request head string _must_ contain "Host: " header
fwrite( $socket, $head );
// read the response header
$header = ReadHeader( $socket );
if( !$header )
{
// handle empty response here the way you need...
Header( "HTTP/1.1 404 Not Found" );
exit();
}
fclose( $socket );
// check for "Location" header
$locationMarker = "Location: ";
$pos = strpos( $header, $locationMarker );
if( $pos > 0 )
{
$counter302--;
if( $counter302 < 0 )
{
// redirect limit (5 by default) expired -- return some warning or do something sensible here
echo "warning: too long redirection sequence";
return 0;
}
// Location is present -- we should determine target host and move there, like any downloading masters do...
// no need to use regex here
$end = strpos( $header, "\n", $pos );
$location = trim( substr( $header, $pos + strlen( $locationMarker ), $end - $pos - strlen( $locationMarker ) ), "\\r\\n" );
// extract pure host (without "http://")
$host = explode( "/", $location );
$ipa = gethostbyname( $host[2] );
// move to Location
return remote_filesize_thru( $ipa, $location, $counter302 );
}
// try to acquire Content-Length within the response
$regex = '/Content-Length:\s([0-9].+?)\s/';
$count = preg_match($regex, $header, $matches);
// if there was a Content-Length field, its value
// will now be in $matches[1]
if( isset( $matches[1] ) )
$size = $matches[1];
else
$size = 0;
return $size;
}
fabio at nospam dot please dot nitrodev dot com
13-Apr-2006 05:46
13-Apr-2006 05:46
core58 at mail dot ru, it did save me time!
One note though. I had to add the Host: header in order to get it working. The value should be the host name (DNS, not IP).
core58 at mail dot ru
10-Apr-2006 05:09
10-Apr-2006 05:09
this is "raw" version of remote_filesize() function.
according to RFC, HTTP servers MUST implement at least GET, POST and HEAD requests, so the function just opens TCP socket connection, sends HEAD request and receives response, parsing length of the resource.
[$ipAddress] is the ip address of remote server.
[$url] is the name of file which size you want to determine.
the code was tested under Apache 2.0.43 and IIS 6.0 and it works correctly in both cases.
i wish the code can save someone's time :)
example:
$ipa = gethostbyname( "www.someserver.com" );
$url = "/docs/somedocument.pdf";
$fsize = remote_filesize2( $ipa, $url );
==========================
<?php
function ReadHeader( $socket )
{
$i=0;
$header = "";
while( true && $i<20 )
{
// counter [$i] is used here to avoid deadlock while reading header string
// it's limited by [20] here cause i really haven't ever met headers with string counter greater than 20
// *
$s = fgets( $socket, 4096 );
$header .= $s;
if( strcmp( $s, "\r\n" ) == 0 || strcmp( $s, "\n" ) == 0 )
break;
$i++;
}
if( $i >= 20 )
{
// suspicious header strings count was read
// *
return false;
}
return $header;
}
function remote_filesize2( $ipAddress, $url )
{
$socket = fsockopen( $ipAddress, 80 );
if( !$socket )
{
// failed to open TCP socket connection
// do something sensible here besides exit();
// ...
exit();
}
// just send HEAD request to server
// *
fwrite( $socket, "HEAD $url HTTP/1.0\r\nConnection: Close\r\n\r\n" );
// read the response header
// *
$header = ReadHeader( $socket );
if( !$header )
{
Header( "HTTP/1.1 404 Not Found" );
exit();
}
// try to acquire Content-Length within the response
// *
$regex = '/Content-Length:\s([0-9].+?)\s/';
$count = preg_match($regex, $header, $matches);
// if there was a Content-Length field, its value
// will now be in $matches[1]
if( isset( $matches[1] ) )
{
$size = $matches[1];
}
else
{
$size = 0;
}
fclose( $socket );
return $size;
}
?>
mkamerma at science dot uva dot nl
12-Mar-2006 06:12
12-Mar-2006 06:12
When read/writing binary files you often cannot rely on the feof() function being of much use, since it doesn't get triggered if the pointer is at the eof but hasn't tried to read one more byte. In this case you instead need to check if the file pointer is at filesize yet, but if you don't have the filename handy, you need to pluck it out fstat all the time. Two simple functions that would be nice to have natively in PHP:
<?php
function fpfilesize(&$fp) { $stat = fstat($fp); return $stat["size"]; }
function fpeof(&$fp) { return ftell($fp)==fpfilesize($fp); }
?>
Jonas Sweden
10-Mar-2006 04:55
10-Mar-2006 04:55
<?php
/* Recursive filesize, nothing new but a small one.
The $self var as a convenience if i want to change
functionname */
function filesize_r($path){
if(!file_exists($path)) return 0;
if(is_file($path)) return filesize($path);
$self = __FUNCTION__;
$ret = 0;
foreach(glob($path."/*") as $fn)
$ret += $self($fn);
return $ret;
}
?>
jiquera at yahoo dot com
06-Mar-2006 08:02
06-Mar-2006 08:02
here a piece of code to format a filesize:
<?php
function formatbytes($val, $digits = 3, $mode = "SI", $bB = "B"){ //$mode == "SI"|"IEC", $bB == "b"|"B"
$si = array("", "k", "M", "G", "T", "P", "E", "Z", "Y");
$iec = array("", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi", "Yi");
switch(strtoupper($mode)) {
case "SI" : $factor = 1000; $symbols = $si; break;
case "IEC" : $factor = 1024; $symbols = $iec; break;
default : $factor = 1000; $symbols = $si; break;
}
switch($bB) {
case "b" : $val *= 8; break;
default : $bB = "B"; break;
}
for($i=0;$i<count($symbols)-1 && $val>=$factor;$i++)
$val /= $factor;
$p = strpos($val, ".");
if($p !== false && $p > $digits) $val = round($val);
elseif($p !== false) $val = round($val, $digits-$p);
return round($val, $digits) . " " . $symbols[$i] . $bB;
}
//some test cases:
function test($i, $digits = 3, $mode = "SI", $bB = "B"){
echo $i . " = " . formatbytes($i, $digits, $mode, $bB) . "<br>\n";
}
test(1024);
test(1024*1024);
test(1024*1024, 4);
test(1024*1024, 3, "IEC");
test(1024, 3, "SI", "b");
test(32423);
test(323);
test(128, "3", "IEC", "b");
test(324235236362453);
test(32423535424236324362453, 3, "IEC");
//actual use:
echo formatbytes(file_size("myfile.php"));
?>
it formats to bit or bytes according to SI or IEC and rounded to a given number of digits.
RobKohrPhp at remail dot robkohr dot com
04-Feb-2006 12:42
04-Feb-2006 12:42
Simplified recursive size measurement. Will also take into account the size of the folders themselves.
function get_size($path)
{
if(!is_dir($path)) return filesize($path);
if ($handle = opendir($path)) {
$size = 0;
while (false !== ($file = readdir($handle))) {
if($file!='.' && $file!='..'){
$size += filesize($path.'/'.$file);
$size += get_size($path.'/'.$file);
}
}
closedir($handle);
return $size;
}
}
will at imarc dot net
28-Jan-2006 04:08
28-Jan-2006 04:08
If you are trying to find a way to get the filesize for files over 2GB, you can always use exec() and run a system command to return the value. The following works on my linux box:
$sizeInBytes = filesize($path);
if (!$sizeInBytes) {
$command = "ls -l \"$path\" | cut -d \" \" -f 6";
$sizeInBytes = exec($command);
}
mateusz at bsdmail dot org
31-Dec-2005 10:54
31-Dec-2005 10:54
Recursive function, which returns size of folder or file.
<?php
function get_size($path)
{
if(!is_dir($path))return filesize($path);
$dir = opendir($path);
while($file = readdir($dir))
{
if(is_file($path."/".$file))$size+=filesize($path."/".$file);
if(is_dir($path."/".$file) && $file!="." && $file !="..")$size +=get_size($path."/".$file);
}
return $size;
}
?>
aidan at php dot net
12-Jul-2005 09:01
12-Jul-2005 09:01
This function uses a stack array to get the size of a directory.
http://aidanlister.com/repos/v/function.dirsize.php
You can convert this to a human readable size using:
http://aidanlister.com/repos/v/function.size_readable.php
For a faster (unix only) implementation, see function.disk-total-space, note #34100
http://www.php.net/manual/en/function.disk-total-space.php#34100
Also of interest is this wikipedia article, discussing the difference between a kilobyte (1000) and a kibibyte (1024).
http://en.wikipedia.org/wiki/Bytes
Raphael Kirchner
06-Mar-2005 06:52
06-Mar-2005 06:52
Addition to my earlier post: I searched around and found the background in the notes for disk_total_space(): http://www.php.net/manual/en/function.disk-total-space.php
To give a short summary here - andudi pointed out that
a) the SIZE of a file and
b) the SPACE on disk it uses
aren't equal and shalless provided a function dskspace() which returns exactly (tested!) what "du" would.
bkimble at ebaseweb dot com
19-Nov-2004 03:33
19-Nov-2004 03:33
In addition to the handy function Kris posted, here is an upgraded version that does basic http authentication as well.
<?php
/*
* (mixed)remote_filesize($uri,$user='',$pw='')
* returns the size of a remote stream in bytes or
* the string 'unknown'. Also takes user and pw
* incase the site requires authentication to access
* the uri
*/
function remote_filesize($uri,$user='',$pw='')
{
// start output buffering
ob_start();
// initialize curl with given uri
$ch = curl_init($uri);
// make sure we get the header
curl_setopt($ch, CURLOPT_HEADER, 1);
// make it a http HEAD request
curl_setopt($ch, CURLOPT_NOBODY, 1);
// if auth is needed, do it here
if (!empty($user) && !empty($pw))
{
$headers = array('Authorization: Basic ' . base64_encode($user.':'.$pw));
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
$okay = curl_exec($ch);
curl_close($ch);
// get the output buffer
$head = ob_get_contents();
// clean the output buffer and return to previous
// buffer settings
ob_end_clean();
// gets you the numeric value from the Content-Length
// field in the http header
$regex = '/Content-Length:\s([0-9].+?)\s/';
$count = preg_match($regex, $head, $matches);
// if there was a Content-Length field, its value
// will now be in $matches[1]
if (isset($matches[1]))
{
$size = $matches[1];
}
else
{
$size = 'unknown';
}
return $size;
}
?>