dirname
Note that you should not rely on this function on linux BTRFS filesystems.read the FAQ for more info
https://btrfs.wiki.kernel.org/articles/f/a/q/FAQ_1fe9.htm
disk_free_space
(PHP 4 >= 4.1.0, PHP 5)
disk_free_space — Renvoie l'espace disque disponible sur le système de fichiers ou la partition
Description
float disk_free_space
( string
$directory
)Renvoie l'espace disque disponible dans le répertoire ou la partition.
Liste de paramètres
-
directory -
Un dossier du système de fichiers ou une partition d'un disque.
Note:
Si vous fournissez un fichier au lieu d'un dossier, le comportement de cette fonction peut être aléatoire, suivant le système d'exploitation et les versions de PHP.
Valeurs de retour
Retourne le nombre d'octets disponible, sous la forme d'un nombre décimal
ou FALSE si une erreur survient.
Exemples
Exemple #1 Exemple avec disk_free_space()
<?php
// $df contient le nombre d'octets libres sur "/"
$df = disk_free_space("/");
// Sous Windows:
$df_c = disk_free_space("C:");
$df_d = disk_free_space("D:");
?>
Notes
Note: Cette fonction ne fonctionne pas avec les fichiers distants, car le fichier utilisé doit être accessible sur le système de fichiers local.
add a note
User Contributed Notes
disk_free_space
crrodriguez at opensuse dot org
20-Dec-2011 10:54
wiede at gmx dot net
11-Apr-2011 02:36
Transformation is possible WITHOUT using loops:
<?php
$bytes = disk_free_space(".");
$si_prefix = array( 'B', 'KB', 'MB', 'GB', 'TB', 'EB', 'ZB', 'YB' );
$base = 1024;
$class = min((int)log($bytes , $base) , count($si_prefix) - 1);
echo $bytes . '<br />';
echo sprintf('%1.2f' , $bytes / pow($base,$class)) . ' ' . $si_prefix[$class] . '<br />';
?>
sam
17-Dec-2008 10:52
Nice, but please be aware of the prefixes.
SI specifies a lower case 'k' as 1'000 prefix.
It doesn't make sense to use an upper case 'K' as binary prefix,
while the decimal Mega (M and following) prefixes in SI are uppercase.
Furthermore, there are REAL binary prefixes since a few years.
Do it the (newest and recommended) "IEC" way:
KB's are calculated decimal; power of 10 (1000 bytes each)
KiB's are calculated binary; power of 2 (1024 bytes each).
The same goes for MB, MiB and so on...
Feel free to read:
http://en.wikipedia.org/wiki/Binary_prefix
rostvertol dot mil at gmail dot com
18-Feb-2008 08:27
A cleaner and more efficient way of making human readable file sizes:
<?php
function decodeSize( $bytes )
{
$types = array( 'B', 'KB', 'MB', 'GB', 'TB' );
for( $i = 0; $bytes >= 1024 && $i < ( count( $types ) -1 ); $bytes /= 1024, $i++ );
return( round( $bytes, 2 ) . " " . $types[$i] );
}
?>
root at mantoru dot de
06-Dec-2007 05:25
Note that disk_free_space() does an open_basedir check.
Nitrogen
11-Jan-2007 02:50
Another easy way to convert bytes to human readable sizes would be this:
<?php
function HumanSize($Bytes)
{
$Type=array("", "kilo", "mega", "giga", "tera", "peta", "exa", "zetta", "yotta");
$Index=0;
while($Bytes>=1024)
{
$Bytes/=1024;
$Index++;
}
return("".$Bytes." ".$Type[$Index]."bytes");
}
?>
It simply takes the $Bytes and divides it by 1024 bytes untill it's no longer over or equal to 1024, meanwhile it increases the $Index to allocate which suffix belongs to the return (adding 'bytes' to the end to save some space).
You can easily modify it so it's shorter, but I made it so it's more clearer.
Nitrogen.
mixar at yandex dot ru
04-Dec-2006 12:33
This the right function is:
function formatSize($size){
switch (true){
case ($size > 1099511627776):
$size /= 1099511627776;
$suffix = 'TB';
break;
case ($size > 1073741824):
$size /= 1073741824;
$suffix = 'GB';
break;
case ($size > 1048576):
$size /= 1048576;
$suffix = 'MB';
break;
case ($size > 1024):
$size /= 1024;
$suffix = 'KB';
break;
default:
$suffix = 'B';
}
return round($size, 2).$suffix;
}
djneoform at gmail dot com
12-Jul-2006 04:13
List all drives, free space, total space and percentage free.
<?
for ($i = 67; $i <= 90; $i++)
{
$drive = chr($i);
if (is_dir($drive.':'))
{
$freespace = disk_free_space($drive.':');
$total_space = disk_total_space($drive.':');
$percentage_free = $freespace ? round($freespace / $total_space, 2) * 100 : 0;
echo $drive.': '.to_readble_size($freespace).' / '.to_readble_size($total_space).' ['.$percentage_free.'%]<br />';
}
}
function to_readble_size($size)
{
switch (true)
{
case ($size > 1000000000000):
$size /= 1000000000000;
$suffix = 'TB';
break;
case ($size > 1000000000):
$size /= 1000000000;
$suffix = 'GB';
break;
case ($size > 1000000):
$size /= 1000000;
$suffix = 'MB';
break;
case ($size > 1000):
$size /= 1000;
$suffix = 'KB';
break;
default:
$suffix = 'B';
}
return round($size, 2).$suffix;
}
?>
Ashraf M Kaabi
02-Mar-2005 05:38
and also you can know the used space , in this
example :
<?
function disk_used_space($drive)
{
return disk_total_space("$drive:") - disk_free_space("$drive:");
}
echo disk_used_space('C');
?>