mysql_fetch_assoc() invalid argument

[bouba]

Hi. I need some help about mysql_fethc_assoc()

I am writing a mysql database abstraction set of functions, and I keep getting an error with the abstraction function for mysql_fetch_assoc:

mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource

Here is a piece of my code.

$dbConn=mysql_connect($dbHost, $dbUser, $dbPass) or die ('Mysql conect failed.'.mysql_error());
mysql_select_db($dbName,$dbConn) or die ('Cannot select database.'.mysql_error());
function dbQuery($sql){
return mysql_query($sql) or die ('Query failed.'.mysql_error());
}
function dbAffectedRows(){
global $dbConn;
return mysql_affected_rows($sql);
}
function dbFetchArray($result, $resultType= MYSQL_NUM){
return mysql_fetch_array($result, $resultType);
}
function dbFetchAssoc($result){
return mysql_fetch_assoc($result);
}
function dbFetchRow($result){
return mysql_fetch_row($result);
}
function dbFreeResult($result){
return mysql_free_result($result);
}
function dbNumRows($result){
return mysql_num_rows($result);
}

The only function issuing errors is mysql_fetch_assoc().

Thanks.

[DanDaBeginner]

try to check the query.. I guess the error occur in the query....