PHP错误 - 未定义的偏移量:1

Question

当URL是domain.com/portfolio但我没有收到php错误"未定义的偏移量:1"而不是domain.com/portfolio/project1.提前谢谢了

$path = drupal_get_path_alias($_GET['q']);
$path = explode('/', $path);
if ($path[0] == 'portfolio' && $path[1] != '') {
    // action
}

Answer 1

if ($path[0] == 'portfolio' && !empty($path[1])) {