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PHP PHP Arrays and Control Structures PHP Arrays Multidimensional Arrays

please help))

<?php //edit this array $contact1 = array ( 'Alena Holligan'=> 'alena.holligan@teamtreehouse.com' ); $contact2 = array ( 'Dave McFarland'=> 'dave.mcfarland@teamtreehouse.com' ); $contact3 = array ( 'Treasure Porth'=> 'treasure.porth@teamtreehouse.com' ); $contact4 = array ( 'Andrew Chalkley'=> 'andrew.chalkley@teamtreehouse.com' );

$list = array($contact1, $contact2, $contact3, $contact4); echo $list;

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";

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 and 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.

3 Answers

$contacts = array(
    array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com'),
    array('name' => 'Dave McFarland', 'email' => 'dave.mcfarland@teamtreehouse.com'),
    array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com'),
    array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com')
);

// to access 'Alena Holligan' 
// $contacts[0]['name'];

Here are some links about arrays and multidimensional arrays. Arrays & Multidimensional Arrays Arrays & Multidimensional Arrays

Multidimensional arrays are simply an array inside an array :)

Thank you so much)

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 and 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. Bummer! I do not see the required output. You should not be modifying the output at this point.

<?php //edit this array

$contacts = array( array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com'), array('name' => 'Dave McFarland', 'email' => 'dave.mcfarland@teamtreehouse.com'), array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com'), array('name' => 'Alena Holligan', 'email' => 'alena.holligan@teamtreehouse.com') );

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";