PHP: mysql_fetch_array() expects parameter 1 to be resource, boolean given [duplicate]

Answer 1

There must be an error in the query of some sort.

First off, I don't see a mysql_connect(). It is probably in an included file. Check to make sure there is no error for the connection (mysql_error() after the connection).

You can also check:

if (!mysql_query($sql)) {
   echo mysql_error();
}

That will show you any error in the query.

You should also look into SQL Injection and a DB Wrapper (I suggest PDO). PDO can be set up to throw an exception on errors so you will definitely know about them.

Answer 2

Per the documentation, mysql_query returns FALSE on an error with the query. Because of this, your argument to mysql_fetch_array is a boolean. Use the mysql_error function to see what's wrong with the SELECT query.

For example,

$result=mysql_query($sql) or die(mysql_error());

Answer 3

I suspect you don't actually have a database connection initiated. This means that mysql_query() fails and returns false, which is the bool described in the error.

Have a look at http://www.php.net/mysql_connect