PHP 5.4.31 Released

disk_total_space

(PHP 4 >= 4.1.0, PHP 5)

disk_total_spaceZwraca całkowity rozmiar systemu plików lub partycji dysku

Opis

float disk_total_space ( string $katalog )

Podając łańcuch zawierający katalog, funkcja ta zwróci całkowitą liczbę bajtów w odpowiadającym mu systemie plików lub partycji dysku.

Parametry

katalog

Katalog w systemie plików lub partycji dysku.

Zwracane wartości

Zwraca całkowitą liczbę bajtów jako liczbę zmiennoprzecinkową lub FALSE w przypadku niepowodzenia.

Przykłady

Przykład #1 Przykład disk_total_space()

<?php
// $ds zawiera całkowita liczbę dostepnych bajtów on "/"
$ds disk_total_space("/");

// Pod Windows:
$ds disk_total_space("C:");
$ds disk_total_space("D:");
?>

Notatki

Informacja: Ta funkcja nie będzie działać na zdalnych plikach, ponieważ przetwarzany plik musi być dostępny w systemie plików serwera.

Zobacz też:

  • disk_free_space() - Zwraca ilość wolnego miejsca w systemie plików lub partycji dysku

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User Contributed Notes 9 notes

up
3
andudi at gmx dot ch
12 years ago
To find the total size of a file/directory you have to differ two situations:
(on Linux/Unix based systems only!?)

you are interested:
1) in the total size of the files in the dir/subdirs
2) what place on the disk your dir/subdirs/files uses

- 1) and 2) normaly differs, depending on the size of the inodes
- mostly 2) is greater than 1) (in the order of any kB)
- filesize($file) gives 1)
- "du -ab $file" gives 2)

so you have to choose your situation!

on my server I have no rights to use "exec du" in the case of 2), so I use:
  $s = stat($file);
  $size = $s[11]*$s[12]/8);
whitch is counting the inodes [12] times the size of them in Bits [11]

hopes this helps to count the used disk place in a right way... :-)

                     Andreas Dick
up
2
stierguy1 at msn dot com
7 years ago
function roundsize($size){
    $i=0;
    $iec = array("B", "Kb", "Mb", "Gb", "Tb");
    while (($size/1024)>1) {
        $size=$size/1024;
        $i++;}
    return(round($size,1)." ".$iec[$i]);}
up
1
Viitala
6 years ago
Beware of empty files!

<?php

   
// Wrong
   
$exp = floor(log($bytes) / log(1024));

   
//Correct
   
$exp = $bytes ? floor(log($bytes) / log(1024)) : 0;

?>
up
1
tularis at php dot net
7 years ago
For a non-looping way to add symbols to a number of bytes:
<?php
function getSymbolByQuantity($bytes) {
   
$symbols = array('B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB');
   
$exp = floor(log($bytes)/log(1024));

    return
sprintf('%.2f '.$symbol[$exp], ($bytes/pow(1024, floor($exp))));
}
up
0
ryan at designedbyrayn dot co dot uk
6 months ago
<?php

//This is  a more readable way of viewing the returned float

// $Bytes contains the total number of bytes on "/"
$Bytes = disk_total_space("/");

function dataSize($Bytes)
{
$Type=array("", "kilo", "mega", "giga", "tera");
$counter=0;
while(
$Bytes>=1024)
{
$Bytes/=1024;
$counter++;
}
return(
"".$Bytes." ".$Type[$counter]."bytes");
}
?>
up
0
nikolayku at tut dot by
7 years ago
Very simple function that convert bytes to kilobytes, megabytes ...

function ConvertBytes($number)
{
    $len = strlen($number);
    if($len < 4)
    {
        return sprintf("%d b", $number);
    }
    if($len >= 4 && $len <=6)
    {
        return sprintf("%0.2f Kb", $number/1024);
    }
    if($len >= 7 && $len <=9)
    {
        return sprintf("%0.2f Mb", $number/1024/1024);
    }
   
    return sprintf("%0.2f Gb", $number/1024/1024/1024);
                           
}
up
0
JulieC
7 years ago
"filesystem or disk partition" does not equal "directory" for Windows.  Thanks.
up
-1
khumlo at gmail dot com
4 years ago
PHP 6 has already come to the market but still there are no standard function that can help retrieve directory size as it has to calculate disk space such as disk_total_space. Although we can use system level call such as exec() and system(), it is too risky to enable these function. So we look for an alternate method so as to calculate directory size.

Sol: retrieving directory size using php

<?php

function get_dir_size($dir_name){
       
$dir_size =0;
           if (
is_dir($dir_name)) {
               if (
$dh = opendir($dir_name)) {
                  while ((
$file = readdir($dh)) !== false) {
                        if(
$file !=.&& $file != ..){
                              if(
is_file($dir_name./.$file)){
                                  
$dir_size += filesize($dir_name./.$file);
                             }
                            
/* check for any new directory inside this directory */
                            
if(is_dir($dir_name./.$file)){
                               
$dir_size +=  get_dir_size($dir_name./.$file);
                              }
                           }
                     }
             }
       }
closedir($dh);
return
$dir_size;
}

$dir_name = “directory name here”;
/* 1048576 bytes == 1MB */
$total_size= round((get_dir_size($dir_name) / 1048576),2) ;
print
“Directory $dir_name size : $total_size MB”;
?>

Depending upon the size format you want to achieve, divide directory size by 1024 or 1024 * 1024 or 1024 * 1024 * 1024 for KB or MB or GB respectively.
up
-3
cotact[at]covac-software[dot]com
4 years ago
Something that might go well with this function is the ability to list available disks. On Windows, here's the relevant code:

<?php
/**
* Finds a list of disk drives on the server.
* @return array The array velues are the existing disks.
*/
function get_disks(){
    if(
php_uname('s')=='Windows NT'){
       
// windows
       
$disks=`fsutil fsinfo drives`;
       
$disks=str_word_count($disks,1);
        if(
$disks[0]!='Drives')return '';
        unset(
$disks[0]);
        foreach(
$disks as $key=>$disk)$disks[$key]=$disk.':\\';
        return
$disks;
    }else{
       
// unix
       
$data=`mount`;
       
$data=explode(' ',$data);
       
$disks=array();
        foreach(
$data as $token)if(substr($token,0,5)=='/dev/')$disks[]=$token;
        return
$disks;
    }
}
?>

EXAMPLE OF USE:
<?php print_r(get_disks()); ?>

EXAMPLE RESULT:
Array
(
    [1] => A:\
    [2] => C:\
    [3] => D:\
    [4] => E:\
    [5] => F:\
    [6] => G:\
    [7] => H:\
    [8] => I:\
    [9] => M:\
    [10] => X:\
    [11] => Z:\
)

Warning: This also finds empty disk drives (eg; CD or SMD drives or the more common floppy drive).

Warning2: If you want to find space usage using the info from my function, prepend the disk function with the "@", eg:

$free=@disk_free_space('A:\\');
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