Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

PHP Build a Simple PHP Application Listing Inventory Items Introducing Arrays

The fourth echo statement, the one inside the foreach loop, should display my favorite letters from the array INSTEAD of AB. Remove the static piece of text from that fourth echo statement, changing it instead to display the value for the array element un

$letters = array("D","G","L"); echo "My favorite "; echo "3"; echo " letters are these: "; foreach($letters as $letter){ echo $letter[D]; echo $letter[G]; echo $letter[L]; echo "AB"; } echo ".";

1 Answer

Stone Preston
Stone Preston
42,016 Points

array indexes (unless its an associative array) are numbers, not letters so $letter[D] is not valid syntax. remember that as a foreach loop loops through each value in the array, that value can be referenced as the working variable ($letter in this case) so if I made an array:

$dog = array("D", "O", "G");

then wanted to print each letter out I could use a for each loop

foreach($dog as $letter) {

    echo $letter;


this would print DOG

see how I use the working variable $letter to echo out each letter in my dog array?