Средства и методы разработки

Нашел, как включить диагностику PHP. Похоже дело в разрешениях доступа. Но как это поправить. не знаю - дремуч в никсах... Warning: fopen(stat.dat): failed to open stream: Permission denied in /var/www/html/test.php on line 9 Warning: flock() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 10 Warning: fread() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 11 Warning: ftruncate() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 13 Warning: fwrite() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 14 Warning: fflush() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 15 Warning: flock() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 16 Warning: fclose() expects parameter 1 to be resource, boolean given in /var/www/html/test.php on line 17 Notice: Undefined variable: current in /var/www/html/test.php on line 26 Warning: file_put_contents(temp.log): failed to open stream: Permission denied in /var/www/html/test.php on line 27