/**
* Determine a writable directory for temporary files.
*
* Function's preference is the return value of sys_get_temp_dir(),
* followed by your PHP temporary upload directory, followed by XAppCONTENT_DIR,
* before finally defaulting to /tmp/
*
* In the event that this function does not find a writable location,
* It may be overridden by the XAppTEMP_DIR constant.
*
*
* @return string Writable temporary directory.
*/
public static function get_temp_dir()
{
static $temp;
xapp_import('xapp.Utils.Strings');
if (defined('XAppTEMP_DIR')) {
return XApp_Utils_Strings::trailingslashit(XAppTEMP_DIR);
}
if ($temp) {
return XApp_Utils_Strings::trailingslashit($temp);
}
if (function_exists('sys_get_temp_dir')) {
$temp = sys_get_temp_dir();
if (@is_dir($temp) && self::is_writable($temp)) {
return XApp_Utils_Strings::trailingslashit($temp);
}
}
$temp = ini_get('upload_tmp_dir');
if (@is_dir($temp) && self::is_writable($temp)) {
return XApp_Utils_Strings::trailingslashit($temp);
}
$temp = realpath(dirname(__FILE__) . DIRECTORY_SEPARATOR);
if (is_dir($temp) && self::is_writable($temp)) {
return $temp;
}
$temp = '/tmp/';
return $temp;
}
