Confused about list construct

[wohlm]

Here is my array

 

$prices = array('Sweaters'=>100, 'Shoes'=>10, 'Watches'=>4);

 

reset($prices);

while (list($product, $price) = each($prices)) {

echo "$product - $price<br />";

}

 

Here is what I don't understand. I am setting $product variable and $price variable to the prices array under "each."

How does $product and $price read from the array. I realize it's being reset here, but how does it make that connection?

 

[cags]

What exactly don't you understand? Have you read the documentation for each and list? The each construct/function simply takes the item the array pointer is currently pointing to and returns an array containing both the key and the value of that array item (then moves the array pointer on one). The list construct assigns the values from an array to the variables it is passed as arguments.

[oni-kun]

You can use foreach for a simpler approach:

$prices = array('Sweaters'=>100, 'Shoes'=>10, 'Watches'=>4);

foreach ($prices as $key=>$value) {
    echo "$key: $value<br />\n";
}

 

If you do not want to use those constructs, It's just as fast.