Array Variables
Arrays.php
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<p>My eight Web 2 students have just taken their final exam.
It was very difficult so I decided to buy my 'A' students a new car.
Here are their scores: </p>
Student1: 89.4<br>
Student2: 89<br>
Student3: 90<br>
Student4: 91<br>
Student5: 89.3<br>
Student6: 92<br>
Student7: 99<br>
Student8 :99.9<br>
<p>Let's use PHP to display the great news.
We will use an array to store the values.</p>
<?php
//This is the array to hold the grades
//notice that arrays are usually numbered
//begining with zero. This is called a zero index.
$grades[0]= 89.4;
$grades[1]= 89;
$grades[2]= 90;
$grades[3]= 91;
$grades[4]= 89.3;
$grades[5]= 92;
$grades[6]= 99;
$grades[7]= 99.9;
//Let's display the number of grades in the array
//by using the echo command and the count function.
//count() returns the number of items within the parenthesis
echo "<p>";
echo "There are ".count($grades)." grades in the array.";
echo "</p>";
//Here are the statements to test
//whether students scored greater than 89.5 (I round up).
//Let's get fancy and use a for loop
//counter variable: Set the counter variable to zero
//condition:run the code while the counter variable is less than 8
//REMEMBER there are 8 students, but we indexed at zero!
//counter increment: increase the counter on every loop
for ($counter=0; $counter < count($grades) ; $counter=$counter+1)
{
if ($grades[$counter] >89.5)
{
//must add one to counter because index starts at zero
print("A new car for student ".($counter+1)."!<br>");
}
}
?>
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