Re: classes?
| From: | Ignacio Vazquez-Abrams | Date: | Thu, 16 Nov 2000 06:17:59 +0000 |
| Subject: | Re: classes? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-25625@lists.php.net to get a copy of this message | ||
On Thu, 16 Nov 2000, Kurth Bemis wrote:
> ok all i'm just starting to get involved with classes...and have a slight
> problem......i don't understand how to access functions..i have been
> reading the manual at php.net but that confuses even more....take a look at
> some code i wrote...
>
> print "<a href=\"$PHP_SELF?product=$product&quanity=1\">$title -
> $price</a>";
>
> thats to add a item to my cart......
>
> the class function looks like this...
>
> function add_item($table, $session, $product, $quantity) {
> $qty = $this->check_item($table, $session, $product);
> if($qty == 0) {
> $query = "INSERT INTO $table (session, product, quantity)
> VALUES ";
> $query .= "('$session', '$product',
> '$quantity') ";
> mysql_query($query);
> } else {
> $quantity += $qty;
> $query = "UPDATE $table SET quantity='$quantity' WHERE
> session='$session' AND ";
> $query .= "product='$product' ";
> mysql_query($query);
> }
> }
>
> my question is how to i pass that vars that i need to the class? am i
> making sense here?
>
> ~kurth
> Kurth Bemis - Network/Systems Administrator, USAExpress.net/Ozone Computer
>
> There is no sin except stupidity. -- Oscar Wilde
>
> kurth@usaexpress.net | http://www.usaexpress.net/kurth
> PGP key available - http://www.usaexpress.net/kurth/pgp
>
> Fight Weak Encryption! Donate your wasted CPU cycles to Distributed.net
> (http://www.distributed.net)
>
First of all, don't use $PHP_SELF when dealing with things as vital as a
shopping cart. Use a form with a method of POST. Then, have the action go
to a second script where you use $HTTP_POST_VARS to retrieve the variables
and add the item, then emit a "Location:" header to bounce back to the
original script.
--
Ignacio Vazquez-Abrams <ignacio@openservices.net>