PHP mysql auto insert timestamp

Question

Say I have a table name auto_parts with these fields. id, part, price, timestamp and I insert a new row via php as so:

$query = \"insert into auto_p         


        

Answer 1

$query = "insert into auto_parts(id, part, price, timestamp)
  values(1, 'axle', 200, 'NOW()')"
mysql_query($query);