Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialErick Amezcua
21,826 PointsProblems calling arrays
I can't see my error.
When click check work I get this message: I do not see the use of the names from contacts array in the output. When calling the multidimensional array, you must first call the outer indexed array and then the inner associative array. Example: $array[#][STRING]
<?php
//edit this array
$contacts = array(array('name' =>'Alena Holligan',
'email' => 'alena.holligan@teamtreehouse.com'),
array('name' => 'Dave McFarland',
'email' => 'dave.mcfarland@teamtreehouse.com'),
array('name' => 'Treasure Porth',
'email' => 'treasure.porth@teamtreehouse.com'),
array('name' => 'Andrew Chalkley',
'email' => 'andrew.chalkley@teamtreehouse.com'));
echo "<ul>\n";
//$contacts[0] will return 'Alena Holligan' in our simple array of names.
echo "<li>$contacts[0]['name'] : $contacts[0]['email']</li>\n";
echo "<li>$contacts[1]['name'] : $contacts[1]['email']</li>\n";
echo "<li>$contacts[2]['name'] : $contacts[2]['email']</li>\n";
echo "<li>$contacts[3]['name'] : $contacts[3]['email']</li>\n";
echo "</ul>\n";
2 Answers
Patrik Horváth
11,110 Pointsnever give ' into echo when you call variable its not valid
Not Valid :
echo "$contacts[0]['name']";
Valid :
echo $contacts[0]['name'];
Also Valid :
echo "Random text hahaha .... " . $contacts[0]['name'];
here you are :
<?php
//edit this array
$contacts = array(
array(
"name"=>"Alena Holligan",
"email"=> 'alena.holligan@teamtreehouse.com'
),
array(
"name" => "Dave McFarland",
"email" => "dave.mcfarland@teamtreehouse.com"
),
array(
"name"=> "Treasure Porth",
"email"=>'treasure.porth@teamtreehouse.com'
),
array(
"name" => "Andrew Chalkley",
"email" => "andrew.chalkley@teamtreehouse.com"
)
);
echo "<ul>\n";
//$contacts[0] will return 'Alena Holligan' in our simple array of names.
echo "<li>". $contacts[0]['name'] . " : ". $contacts[0]['email'] ."</li>\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'] . " : ". $contacts[3]['email'] ."</li>\n";
echo "</ul>\n";
?>
andren
28,558 PointsI'd like to add that while the examples Patrik provides in the answer above are correct you can in fact call variables within a string if you wrap it in curly braces like this:
echo "{$contacts[0]['name']}";
It is an example of the Complex Syntax for variable parsing.
So the challenge can be solved with this code:
<?php
//edit this array
$contacts = array(array('name' =>'Alena Holligan',
'email' => 'alena.holligan@teamtreehouse.com'),
array('name' => 'Dave McFarland',
'email' => 'dave.mcfarland@teamtreehouse.com'),
array('name' => 'Treasure Porth',
'email' => 'treasure.porth@teamtreehouse.com'),
array('name' => 'Andrew Chalkley',
'email' => 'andrew.chalkley@teamtreehouse.com'));
echo "<ul>\n";
//$contacts[0] will return 'Alena Holligan' in our simple array of names.
echo "<li>{$contacts[0]['name']} : {$contacts[0]['email']}</li>\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";