code: public function isInOpenBasedir() : bool
      {
          if (!$this->loaded) {
              $this->resolvePath();
          }
  
          /**
           * fetch openBaseDir
           * @var string[]
           */
          static $openBaseDirs = null;
  
          if ($openBaseDirs === null) {
              $openBaseDirs = array_filter(explode(':', trim(ini_get('open_basedir'))), function ($dir): bool {
                  return !empty($dir);
              });
          }
  
          // no basedir specified, therefor assume system is local only
          if (empty($openBaseDirs)) {
              return true;
          }
  
          // check against open_basedir paths
          foreach ((array) $openBaseDirs as $dir) {
              $dir = realpath($dir);
              if (stripos($this->raw, $dir) === 0) {
                  return true;
              }
          }
  
          return false;
      }
docs: check if path is in open_basedir restrictions
  @return bool