Constructor.
string $savePath Path of directory to save session files.: Default null will leave setting as defined by PHP. '/path', 'N;/path', or 'N;octal-mode;/path
\InvalidArgumentException On invalid $savePath
http://php.net/session.configuration.php#ini.session.save-path for further details.
public function __construct($savePath = null) {
if (null === $savePath) {
$savePath = ini_get('session.save_path');
}
$baseDir = $savePath;
if ($count = substr_count($savePath, ';')) {
if ($count > 2) {
throw new \InvalidArgumentException(sprintf('Invalid argument $savePath \'%s\'', $savePath));
}
// characters after last ';' are the path
$baseDir = ltrim(strrchr($savePath, ';'), ';');
}
if ($baseDir && !is_dir($baseDir)) {
mkdir($baseDir, 0777, true);
}
ini_set('session.save_path', $savePath);
ini_set('session.save_handler', 'files');
}