Programming :: PHP - Getting Error When Trying To Update Table With Pg_query_params()

Provided this example code with a few givens:

- a database connection has already been made and proven to work
- the variables $newname, $newnumber and $oldnumber have a value; $newname is type varchar(25), the other two are integer).

PHP Code:
$params=array($newname,$newnumber,$oldnumber);$new_result=pg_query_params($db,"UPDATE mytable SET name=$1, number=$2 WHERE number=$3",$params);$new_number_rows=pg_affected_rows($new_result); 

I get an error, and when looking on the database end I the query with the $1 $2 and $3 instead of assigned values; pg_last_error() shows: Quote: ERROR: syntax error at or near "WHERE" LINE 1: WHERE number=$3 ^

Since the given name may contain quotes, or someone may try sql injection, I wanted to use this safe(r) function;