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**Associative* Arrays*
An associative array, each ID key is associated with a value.
When storing data about specific named values, a numerical array is not always the best way to do it.
With associative arrays we can use the values as keys and assign values to them.
*Example 1*
In this example we use an array to assign ages to the different persons:
$ages = array("Peter"=>32, "Quagmire"=>30, "Joe"=>34); *Example 2*
This example is the same as example 1, but shows a different way of creating the array:
$ages['Peter'] = "32";
$ages['Quagmire'] = "30";
$ages['Joe'] = "34"; The ID keys can be used in a script:
<?php $ages['Peter'] = "32";
$ages['Quagmire'] = "30";
$ages['Joe'] = "34"; echo "Peter is " . $ages['Peter'] . " years old.";
?> The code above will output:
Peter is 32 years old.
**Multidimensional* Arrays*
In a multidimensional array, each element in the main array can also be an array. And each element in the sub-array can be an array, and so on.
*Example*
In this example we create a multidimensional array, with automatically assigned ID keys:
$families = array
(
"Griffin"=>array
(
"Peter",
"Lois",
"Megan"
),
"Quagmire"=>array
(
"Glenn"
),
"Brown"=>array
(
"Cleveland",
"Loretta",
"Junior"
)
); The array above would look like this if written to the output:
Array
(
[Griffin] => Array
(
[0] => Peter
[1] => Lois
[2] => Megan
)
[Quagmire] => Array
(
[0] => Glenn
)
[Brown] => Array
(
[0] => Cleveland
[1] => Loretta
[2] => Junior
)
) *Example 2*
Lets try displaying a single value from the array above:
echo "Is " . $families['Griffin'][2] .
" a part of the Griffin family?"; The code above will output:
Is Megan a part of the Griffin family?
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