set_time_limit
This function does not account for virtualhost-specific modifications to the temp path and/or open_basedir:
<Virtualhost>
php_admin_value open_basedir /home/user
php_admin_value upload_tmp_dir /home/user/tmp
php_admin_value session.save_path /home/user/tmp
</Virtualhost>
Within this config it still returns /tmp
sys_get_temp_dir
(PHP 5 >= 5.2.1)
sys_get_temp_dir — Returns directory path used for temporary files
Description
string sys_get_temp_dir
( void
)
Returns the path of the directory PHP stores temporary files in by default.
Return Values
Returns the path of the temporary directory.
Examples
Example #1 sys_get_temp_dir() example
<?php
// Create a temporary file in the temporary
// files directory using sys_get_temp_dir()
$temp_file = tempnam(sys_get_temp_dir(), 'Tux');
echo $temp_file;
?>
The above example will output something similar to:
C:\Windows\Temp\TuxA318.tmp
add a note
User Contributed Notes
sys_get_temp_dir
bert-jan at bugbyte dot nl
29-Mar-2010 04:06
php at ktools.eu
17-Oct-2009 02:29
-better to use the php methode 'getenv()' to access the enviroment vars
-the original 'sys_get_temp_dir()' don't use realpath, than it's better to make 'realpath(sys_get_temp_dir())'
<?php
if ( !function_exists('sys_get_temp_dir')) {
function sys_get_temp_dir() {
if( $temp=getenv('TMP') ) return $temp;
if( $temp=getenv('TEMP') ) return $temp;
if( $temp=getenv('TMPDIR') ) return $temp;
$temp=tempnam(__FILE__,'');
if (file_exists($temp)) {
unlink($temp);
return dirname($temp);
}
return null;
}
}
echo realpath(sys_get_temp_dir());
?>
dannel at aaronexodus dot com
07-Sep-2009 04:11
There's no need to use a random name for the directory for tempnam.
Since a file and a directory can't share the same name on the filesystem, we can exploit this and simply use the name of the current file. It is guaranteed that the directory won't exist (because it's a file, of course).
Improving on the last post...
<?php
if ( !function_exists('sys_get_temp_dir')) {
function sys_get_temp_dir() {
if (!empty($_ENV['TMP'])) { return realpath($_ENV['TMP']); }
if (!empty($_ENV['TMPDIR'])) { return realpath( $_ENV['TMPDIR']); }
if (!empty($_ENV['TEMP'])) { return realpath( $_ENV['TEMP']); }
$tempfile=tempnam(__FILE__,'');
if (file_exists($tempfile)) {
unlink($tempfile);
return realpath(dirname($tempfile));
}
return null;
}
}
?>
php [spat] hm2k.org
22-Aug-2008 07:20
I went ahead and slightly improved the function provided.
<?php
if ( !function_exists('sys_get_temp_dir')) {
function sys_get_temp_dir() {
if (!empty($_ENV['TMP'])) { return realpath($_ENV['TMP']); }
if (!empty($_ENV['TMPDIR'])) { return realpath( $_ENV['TMPDIR']); }
if (!empty($_ENV['TEMP'])) { return realpath( $_ENV['TEMP']); }
$tempfile=tempnam(uniqid(rand(),TRUE),'');
if (file_exists($tempfile)) {
unlink($tempfile);
return realpath(dirname($tempfile));
}
}
}
?>
radon8472 at hotmail dot com
01-Aug-2008 04:31
better use
tempnam(":\n\\/?><","");
To detect path by creating a temporary file.
A random directoryname can exist (the chance is low, but it can be).
Better is to use signs, like :\n\\/?>< which are not valid, so realy NEVER a directory with this name can exist.
Anonymous
29-Jan-2008 06:08
This function does not always add trailing slash. This behaviour is inconsistent across systems, so you have keep an eye on it.
minghong at gmail dot com
22-Nov-2006 08:04
To add support of sys_get_temp_dir for PHP4/5, use the following code:
<?php
if ( !function_exists('sys_get_temp_dir') )
{
// Based on http://www.phpit.net/
// article/creating-zip-tar-archives-dynamically-php/2/
function sys_get_temp_dir()
{
// Try to get from environment variable
if ( !empty($_ENV['TMP']) )
{
return realpath( $_ENV['TMP'] );
}
else if ( !empty($_ENV['TMPDIR']) )
{
return realpath( $_ENV['TMPDIR'] );
}
else if ( !empty($_ENV['TEMP']) )
{
return realpath( $_ENV['TEMP'] );
}
// Detect by creating a temporary file
else
{
// Try to use system's temporary directory
// as random name shouldn't exist
$temp_file = tempnam( md5(uniqid(rand(), TRUE)), '' );
if ( $temp_file )
{
$temp_dir = realpath( dirname($temp_file) );
unlink( $temp_file );
return $temp_dir;
}
else
{
return FALSE;
}
}
}
}
?>