If I have variables with numbers how to figure out which are the three with the highest value?
I don t want to say that I m a newb, because I don t think I am. However this question was rather difficult to answer. I ve only been coding PHP for around 8 months, and I imagine that there is a much better way of accomplishing such an effect. Based on my skill set I choose to use PHP and came up with this:
<?php
$variable = array();
$variable[1] = 15;
$variable[2] = 30;
$variable[3] = 9;
$variable[4] = 86;
$variable[5] = 46;
$variable[6] = 12;
$variable[7] = 86;
## Clean the array of duplicates
$variable = array_unique($variable);
## Sort array from greatest to lease in DESC order
rsort($variable);
for ($i = 0; $i < 3; $i++):
echo $variable[$i]."<br />";
endfor;
?>
Good luck!
You can either manually iterate through them and extract the top 3 (maintaining the information you have so far in some form) or just sort them all and take the top 3
This really depends on the language you re using.
I would suggest putting them all in an array, sort them from highest to lowest, and then the first three elements would be your highest.
You may sort them in descending order and the first three will be the ones you want.
Don t forget that there are a couple odd cases here:
A case where the highest value occurs more than 3 times so that there isn t just one correct answer. For example, if there a dozen variables all with a value of zero.
If you have less than 3 variables for such a program there could be a problem.
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