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PHP PHP Arrays and Control Structures PHP Arrays Multidimensional Arrays

Posted by Setfree Shonhai
Setfree Shonhai
4,292 Points

Replace the hard coded values in the output with the name and email values from the contacts array.

Please help, l don't seem to figure this out, l have tried over and over again, but l still can't crack it, help me put it down properly.

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

1 Answer

Michael Collins
Michael Collins
3,447 Points
Michael Collins
Michael Collins
3,447 Points

In this case, you access the multidimensional array by first selecting which number item in the array you would like (starting from zero). So:

<?php
$contacts[0]
?>

Would select the array for Alena.

You can then access the properties in the selected array like below:

<?php
$contacts[0]['name']
?>

Therefore, in this task to replace the hard coded values, for each item you would use the code below:

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

Then repeat that for the other items, so:

<?php
echo "<li>".$contacts[0]['name']." : ".$contacts[0]['email']."</li>\n";
echo "<li>".$contacts[1]['name']." : ".$contacts[1]['email']."</li>\n";
?>

etc.

Hopefully that helps you.

Setfree Shonhai
Setfree Shonhai
4,292 Points

Still getting the same error

Michael Collins
Michael Collins
3,447 Points
Michael Collins
Michael Collins
3,447 Points

Your code should like something like this:

<?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";