I'm rather new to programming in general. I'm starting off with some exercises but I'm kind of getting stuck. I created an array and looped thru with a foreach loop to print out each individual number stored in the array, but I dont know what to do to find the average of the numbers and print it out.
<?php
$myArray = array(87,75,93,95);
foreach($myArray as $value){
echo "$value <br>";
}
?>
only as an exercise, becuse if you actully wanted to do this you would use @kittykittybangbang's answer
<?php
$myArray = array(87,75,93,95);
$sum='';//create our variable
foreach($myArray as $value){
$sum+=$value; //adds $value to $sum
//echo "$value <br>";
}
echo $sum;
?>
for the count count($myArray); makes the most senses but you could do that in the loop as well:
<?php
$myArray = array(87,75,93,95);
$sum= $count=0;// initiate interger variables
foreach($myArray as $value){
$sum+=$value; //adds $value to $sum
$count++; //add 1 on every loop
}
echo $sum;
echo $count;
//the basic math for any average:
echo $sum/$count;
?>
if you don't create $sum and $count before the loop you would get notices returned from php, as the first time it tried to add to either, there would be noting to add to
You could:
$avg = array_sum($myArray) / count($myArray);
echo $avg;
Where:
array_sum calculates the sum of all elements in the given array.count outputs the total number of elements in the given array. 
