Average of a sequence of numbers
There are two programs: average.php and average2.php
| code of average.php | code of average2.php |
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<?php //the variables are setted to zero or to one $sum=0; $average=0; $counter=1; // The action is for the average2.php program // the sum, average and counter variables // are sent hiddenly with the assigned values echo" Type in the first number <form action='average2.php' method='post'> <input name='number' size='6' type='text'> <input name='sum' type='hidden' value='$sum'> <input name='average' type='hidden' value='$average'> <input name='counter' type='hidden' value='$counter'> <input type='submit' value='Go!'> </form>"; ?> |
<?php //calculation $sum = $sum + $number; $average = $sum/$counter; $average = round ($average,3); $counter++; // The action is for itself // the sum, average and counter variables // are sent hiddenly with the updated values echo" <p>The current average is $average</p> <p>Type in another number <form action="average2.php" method=post> <input name='number' size='6' type='text'> <input name='sum' type='hidden' value=$sum> <input name='average' type='hidden' value=$average> <input name='counter' type='hidden' value=$counter> <input type=submit value='Go!'></p>"; </form> ?> |