"Because the price is stored in the database as a float, you don't want to put slashes into it. You can achieve the same effect of filtering out any odd characters on this numerical field by calling doubleval(), which we discussed in Chapter 1, "PHP Crash Course. " This also takes care of any currency symbols that the user might have typed into the form.
"Again, you connect to the database by instantiating the mysqli object and setting up a query to send to the database. In this case, the query is an SQL INSERT:"
