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PHP PHP Arrays and Control Structures PHP Arrays Multidimensional Arrays

Posted by Muneeb Farrukh
Muneeb Farrukh
9,216 Points

In the code below, we have a simple array of contact names. We want to use the $contacts array to fill in the hardcoded

In the code below, we have a simple array of contact names. We want to use the $contacts array to fill in the hardcoded list of names an email addresses. To hold the email as well as the name for each contact, we need a multidimensional array, meaning each person in the contact list will have their own array. The first step is to make each person their own single item ASSOCIATIVE array, using 'name' as the key for these internal arrays.

index.php 
<?php
//edit this array
$contacts = array('Alena Holligan', 'Dave McFarland', 'Treasure Porth', 'Andrew Chalkley');
$contacts = array(
  array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com'),
  array('name' => 'Dave McFarland', 'email' => 'dave.mcfarland@teamtreehouse.com'),
  array('name' => 'Treasure Porth', 'email' => 'treasure.porth@teamtreehouse.com'),
  array('name' => 'Andrew Chalkley', 'email' => 'andrew.chalkley@teamtreehouse.com'),
);
echo "<ul>\n";
//$contacts[0] will return 'Alena Holligan' in our simple array of names.
echo "<li>" . $contacts[0]['name'], " : " . $contacts[0]['email'] . "</li>";
echo "<li>" . $contacts[1]['name'], " : " . $contacts[1]['email'] . "</li>";
echo "<li>" . $contacts[2]['name'], " : " . $contacts[2]['email'] . "</li>";
echo "<li>" . $contacts[3]['name'], " : " . $contacts[3]['email'] . "</li>";
echo "</ul>\n";

?>

1 Answer

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

You're so close!

You just have one error - you're using a comma instead of a period at one point in your concatination:

(Edit: you also need to preserve the new line breaks from the original code - thanks Jason Anello)

<?php

// echo "<li>" . $contacts[0]['name'], " : " . $contacts[0]['email'] . "</li>";
   echo "<li>" . $contacts[0]['name'] . " : " . $contacts[0]['email'] . "</li>\n";

Nice work on the rest!

Cheers :beers:

-Greg

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Hm, except that this code fails the challenge as well. Alena Holligan can you chime in?

Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

The original output had line returns after each closing li.

</li>\n

Greg Kaleka
Greg Kaleka
39,021 Points
Greg Kaleka
Greg Kaleka
39,021 Points

Thanks Jason - good catch! I've updated my answer.