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PHP PHP Arrays and Control Structures PHP Arrays Multidimensional Arrays

Posted by Dennis Boccardi
Dennis Boccardi
1,099 Points

I have no idea what to do. Multi-dimensional arrays.

What am I suppose to title each array?

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";
Dennis Boccardi
Dennis Boccardi
1,099 Points

I figured it out. Nevermind.

Dennis Boccardi
Dennis Boccardi
1,099 Points

On the second task though, it says,

Add a second element with the key 'email' to the internal array of each person. You'll find the correct email for each person in the hard coded output.

And my code looks correct

<?php //edit this array $contacts = array ( $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' ] );

But, it keeps saying,

Oops! It looks like Task 1 is no longer passing.

3 Answers

David Choi
David Choi
8,536 Points
David Choi
David Choi
8,536 Points

It seems like you are adding elements to the array $contacts, while you are also declaring it. Furthermore, your syntax for adding elements to the array is wrong.

This is your code: 

 $contacts[] = [ 'name' => 'Alena Holligan' 'email' => 'alena.holligan@teamtreehouse.com' ],

However, it should be:

$contacts[] = ['name' => 'Alena Holligan', 'email'=> 'alena.holligan@teamtreehouse.com'];

Please notice the comma seperating 'name' and 'email', and the semicolon at the end of the expression.

Possible way to do this challenge (with better formatting): 

$contacts = array();
$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'
];

BTW this code will still work even if you remove:

$contacts = array();

However, the PHP manual does not advise this, because if the array already contains some value (e.g. string from request variable) then this value will stay in the place and [] may actually stand for string access operator.

Antonio De Rose
Antonio De Rose
20,885 Points
Antonio De Rose
Antonio De Rose
20,885 Points 
<?php

//I think, you are mixing up with the square brackets with normal brackets.
//suggest, not to mix and, follow consistency.

//php 5.4 and above supports, square brackets

$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')
                  );


$contacts1 = [
                  ['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 "<pre>";
print_r($contacts);
echo "<pre>";


echo "<pre>";
print_r($contacts1);
echo "<pre>";
Dennis Boccardi
Dennis Boccardi
1,099 Points
Dennis Boccardi
Dennis Boccardi
1,099 Points

Thanks guys for the help I totally forgot about separating each element in the array with a comma thank you so much