You can echo array values or use these values directly in your statements.

Say you have an array:

$colors=array('blue', 'red', 'green');

The above is equivalent to:

$colors[0]="blue";
$colors[1]="red";
$colors[2]="green";

To echo, simply do:

echo $colors[0]; // outputs blue
echo $colors[1]; // outputs red
echo $colors[2]; // outputs green

Or you can a declare a variable for each value as folows:

$firstcolor=$colors[0];
$secondcolor=$colors[1];
$thirdcolor=$colors[2];

And then echo the variable as follows:

echo $firstcolor; // outputs blue
echo $secondcolor; // outputs red
echo $thirdcolor; // outputs green

See also:

What Are Arrays?

How To Create Arrays

How To View Arrays

How To Modify Arrays

Array arsort() Function

Array asort() Function

Array rsort() Function

Array sort() Function

Array ksort() Function

Array krsort() Function

Array list() Function

Manual Array Iteration

Array count() & sizeof() Function