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PHP PHP Arrays and Control Structures PHP Arrays Multidimensional Arrays

Posted by AJ Ramirez
AJ Ramirez
5,403 Points

Cannot get past this exercise

How do I echo a value from an associative array?

index.php 
<?php
//edit this array
$contacts = array(['name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com'], ['name' => 'Dave McFarland', 'email' => 'dave.mcfarland@teamtreehouse.com'], ['name' => 'Treasure Porth', 'email' => 'treasure.porth@teamtreehouse.com'
], ['name' => 'Andrew Chalkley', 'email' => 'andrew.chalkley@teamtreehouse.com']);

echo "<ul>\n";
//$contacts[0] will return 'Alena Holligan' in our simple array of names.
echo "<li>print_r($contacts[0]['name']) : print_r($contacts[0]['email'])</li>\n";
echo "<li>print_r($contacts[1]['name']) : print_r($contacts[1]['email'])</li>\n";
echo "<li>print_r($contacts[2]['name']) : print_r($contacts[2]['email'])</li>\n";
echo "<li>print_r($contacts[3]['name']) : print_r($contacts[3]['email'])</li>\n";
echo "</ul>\n";

1 Answer

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,253 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

You don't need the printf() function. The echo statements are already there for you in place.

What the challenge is asking you to do is replace the hard coded values that represent what is in the array with the values according to the array index, but if you put it in a string the PHP engine will read that as text.

For example,

Replace the lines like this.

<?php
echo "<li>print_r($contacts[0]['name']) : print_r($contacts[0]['email'])</li>\n";

To look more like this

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

Good luck, and shout again if you're still stuck. :)

AJ Ramirez
AJ Ramirez
5,403 Points

Thank you!

Alycia Canavan
Alycia Canavan
1,244 Points
Alycia Canavan
Alycia Canavan
1,244 Points

Can you explain why the ) are necessary after ['name'] and ['email']? I don't see any opening parentheses. I've been trying this exercise like this:

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

And I'm really confused about why it's not working.