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PHP PHP Arrays and Control Structures PHP Arrays Multidimensional Arrays

Ruiqi Mao
Ruiqi Mao
16,675 Points
Posted by Ruiqi Mao
Ruiqi Mao
16,675 Points

don't understand the question

what should the output look like? don;t understand what the question want me to do ?

index.php 
<?php
//edit this array
$contacts = array('Alena Holligan', 'Dave McFarland', 'Treasure Porth', 'Andrew Chalkley');

echo "<ul>\n";
//$contacts[0] will return 'Alena Holligan' in our simple array of names.
echo "<li>Alena Holligan : alena.holligan@teamtreehouse.com</li>\n";
echo "<li>Dave McFarland : dave.mcfarland@teamtreehouse.com</li>\n";
echo "<li>Treasure Porth : treasure.porth@teamtreehouse.com</li>\n";
echo "<li>Andrew Chalkley : andrew.chalkley@teamtreehouse.com</li>\n";
echo "</ul>\n";
echo $contacts[0];

2 Answers

Christopher Debove
PLUS
Christopher Debove
Courses Plus Student 18,373 Points
Christopher Debove
Christopher Debove
Courses Plus Student 18,373 Points

I've posted the code but also the description for the tasks. If it's explanation you want, don't look at the code.

First you need to edit the simple array given to you, to be an array of associative array with for each contact a key "name" for the name:

<?php

$contacts = array(
  array('name' => 'Alena Holligan'),
  array('name' => 'Dave McFarland'),
  array('name' => 'Treasure Porth'),
  array('name' => 'Andrew Chalkley')
);

?>

The second step is to add a key "email" with the corresponding email:

<?php

$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')
);

?>

The third and last step is to replace the harcoded output, with the values of $contacts :

<?php

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

?>

If you didn't understand the challenge, I recommend you to review the videos of the course ;)

Ruiqi Mao
Ruiqi Mao
16,675 Points
Ruiqi Mao
Ruiqi Mao
16,675 Points

Thank you very much!

Clare A
Clare A
23,994 Points
Clare A
Clare A
23,994 Points

Hi Ruiqi,

They want the simple array on line 3 converted to a multi-dimensional array. Each contact in the array should become its own array so that the individual contact details can be stored.

The snip below might assist you with tasks 1 and 2.

<?php

$contacts[] = [
  "name" => "Alena Holligan",
  "email" => "alena.holligan@teamtreehouse.com",
];
$contacts[] = [
  "name" => "Dave McFarland",
  "email" => "dave.mcfarland@teamtreehouse.com",
];
$contacts[] = [
  "name" => "Treasure Porth",
  "email" => "treasure.porth@teamtreehouse.com",
];
$contacts[] = [
  "name" => "Andrew Chalkley",
  "email" => "andrew.chalkley@teamtreehouse.com",
];

?>

Hope this helps.

Ruiqi Mao
Ruiqi Mao
16,675 Points
Ruiqi Mao
Ruiqi Mao
16,675 Points

Thanks for demonstrating another approach!