please explain this line command

[sean_paul]

please explain this line command

foreach($cart as $isbn => $qty)

thanks in advance

Sean Paul

[daynah]

I could be wrong, but I think you have an associative array called "$cart" where certain isbn numbers has a certain quantity.

$cart = array
(
	"isbn983279875403" => '3',
	"isbn98543435403" => '2',
	"isbn2345275403" => '1',
	"isbn348754434533" => '4'
);

In this example,

$cart['isbn983279875403'] = 3;

This means there are 3 books with the isbn number "983279875403."

I hope that's clear. Arrays are confusing to begin with, but after you get the hang of it, it's pretty easy. 🙂

Now the foreach statement loops through the entire array... and whatever statement is in that loop will execute until there is no more data in the array.

The forloop could look like this:

foreach($cart as $isbn => $qty) 
{
	echo 'I have ' . $qty . ' book(s) with isbn ' . $isbn;
}

[edwardsbc]

'Sean Paul', it sounds like you should really pay a visit to the PHP manual at PHP.net. The manual is very user friendly and has extensive user notes for almost all of the PHP functions. You obviously have some sample code. A good way to learn is by trying to figure out how it works. While 'daynah' has been kind enough to answer your questions, I'm sure you'd learn more by reading about the functions (and related functions) in the manual. See you there: PHP Manual