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PHP Build a Simple PHP Application Working With Functions Displaying Only Four Shirts

jason chan
jason chan
31,009 Points
Posted by jason chan
jason chan
31,009 Points

So how does for loop work?

<?php 

                        $total_products = count($products);
                        $position = 0;
                        $list_view_html = "";
                        foreach($products as $product_id => $product) { 
                            $position = $position + 1;
                            if ($total_products - $position < 4) {
                                $list_view_html = get_list_view_html($product_id,$product) . $list_view_html;
                            }
                        }
                        echo $list_view_html;
                    ?>

So can somebody tell me how this works in layman terms? LOLs

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Jason,

Did you need an explanation on what is happening inside the loop with the $position variable or an explanation of how foreach works (which Ben Lockett has already answered)?

1 Answer

Ben Lockett
Ben Lockett
22,419 Points
Ben Lockett
Ben Lockett
22,419 Points

Hey Jason,

Ill try my best!

foreach($products as $product_id => $product)

This is looping through the array $products. In that array lets say you have some t-shirts and each t-shirts had an ID. This will place the key of the current item in "$product_id" which would be the ID of the T-shirt and it will then put the T-shirt in the "$product" variable.

This type of loop is good if you are working with an associated array when you want to reference the key etc.

To make things simpler you can simply write foreach($products as $product) but this would not give you access to the index or key.

The loop will then go through the the array and run the code you put inside the {} for each item in the array.

Hope this helps

Ben