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Start your free trialYoel Dovid Cohen
13,405 PointsWhat do I do now?
I have done the php arrays part of the course, but am having difficulty wrapping it up as I don't know what to do to make the output a multidimensional array. If anyone can help I will be very grateful. Thanks
PS this is the address of the code challenge in case it doesn't come out: https://teamtreehouse.com/library/php-arrays-and-control-structures/php-arrays/multidimensional-arrays
<?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']['email'] . '</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";
?>
2 Answers
Dave StSomeWhere
19,870 PointsWhat do you do now, you ask....
I would recommend doing a little playing around with your array to understand the multidimensional associative array that you created. PHP provides many tools to help you out.
Two immediately come to mind:
-
var_dump()
- see the break out of your variable -
json_encode()
- turn an array into json data format
Run something like the following:
<?php
//edit this array
$contacts = array(
array('name' => 'Alena Holligan',
'email' => 'alena.holligan@teamtreehouse.com'),
array('name' => 'Dave McFarland',
'email' => 'dave.mcfarland@teamtreehouse.com'),
array('name' => 'Treasure Porth',
'email' => 'treasure.porth@teamtreehouse.com'),
array('name' => 'Andrew Chalkley',
'email' => 'andrew.chalkley@teamtreehouse.com'),
);
// use var_dump() to see entire array
var_dump($contacts);
// or check out the contracts array in json format
echo "\ncontacts array in json format " . json_encode($contacts, JSON_PRETTY_PRINT);
echo "\ncontacts array at forth index is ---> " . json_encode($contacts[3]);
echo "\ncontacts array at third index, name value is ---> " . $contacts[2]['name'];
echo "\ncontacts array at second index, email value is ---> " . $contacts[1]['email'];
You should see the following output:
array(4) {
[0] =>
array(2) {
'name' =>
string(14) "Alena Holligan"
'email' =>
string(32) "alena.holligan@teamtreehouse.com"
}
[1] =>
array(2) {
'name' =>
string(14) "Dave McFarland"
'email' =>
string(32) "dave.mcfarland@teamtreehouse.com"
}
[2] =>
array(2) {
'name' =>
string(14) "Treasure Porth"
'email' =>
string(32) "treasure.porth@teamtreehouse.com"
}
[3] =>
array(2) {
'name' =>
string(15) "Andrew Chalkley"
'email' =>
string(33) "andrew.chalkley@teamtreehouse.com"
}
}
contacts array in json format [
{
"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"
}
]
contacts array at forth index is ---> {"name":"Andrew Chalkley","email":"andrew.chalkley@teamtreehouse.com"}
contacts array at third index, name value is ---> Treasure Porth
contacts array at second index, email value is ---> dave.mcfarland@teamtreehouse.com
Process finished with exit code 0
Does that get you moving in the right direction?
Yoel Dovid Cohen
13,405 PointsHello Dave Thank you for your guidance. I eventualy managed by myself but I find that just asking the question gives me help