Не могу понять в чем ошибка MySQL?

Question

[Никита Кочетков]

Запрос в php файле:

$sql = '
INSERT INTO clients(fio, phone, email, key) VALUES("'.$fio.'","'.$email.'","'.$phone.'","'.$key.'")';

и выдаёт ошибку:
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 'key) VALUES("значение1","значение2","значение3","значение4")' at line 1

Answer 1

[DevMan]

INSERT INTO clients(fio, phone, email, `key`) VALUES("'.$fio.'","'.$email.'","'.$phone.'","'.$key.'")'

KEY - зарезервированное слово.