使用REPLACE INTO的MySQL语法错误

Question

I am getting syntax error with the following statement

REPLACE INTO users (screenname, token, secret) VALUES( '$screenname', '$token', '$secret' ) WHERE 'screenname' = $screenname

The table has a primary key named id, which auto-increments.

Answer 1

据我所知，REPLACE没有位置，您可能需要UPDATE来代替

Answer 2

You need to have a UNIQUE index on screenname .

Also your quotes are wrong in the WHERE clause:

WHERE screenname = '$screenname'

I'm going to assume all your variables have been put through mysql_real_escape_string() :)

Answer 3

try removing both single quotes in the variables of the

values VALUES( '$screenname', '$token', '$secret' )

Eg:

values VALUES($screenname, $token, $secret )