How to sort and get the min & max Value from an Array?
I got 2 Arrays
//each array contains 8 values
$ids = Array(1441, 1313, 1123, 1316, 1313, 1313, 1123, 1567);
//each id has a value in $data array
$data = Array(2, 3, 8, 4, 5, 4, 2, 9);
//here is my problem:
$max_data = array_product($data); //but not all values from $data only these:
$ids = [1441,1123,1316,1313,1567]; //these are the ids with highest data.
echo $max_data; //result must be 2880 (2 * 8 * 4 * 5 * 9)
$min_data = array_product($data); //and now
$ids = [1441,1313,1316,1123,1567]; //these are the ids with lowest data.
e开发者_JAVA百科cho $max_data; //result must be 432 (2 * 3 * 4 * 2 * 9)
I hope, i was able to explain my problem.
Thanks.
Solved it.
I have made a function to get max and min. I would like to get better answers, thanks!
<?php
$ids = Array(1441, 1313, 1123, 1316, 1313, 1313, 1123, 1567);
$data = Array(2, 3, 8, 4, 5, 4, 2, 9);
function getMaxData($ids, $data)
{
(int)$_total = 1;
array_multisort($ids, $data, SORT_DESC);
foreach(array_unique($ids) as $key => $value)
$_total *= $data[$key];
return $_total;
}
function getMinData($ids, $data)
{
(int)$_total = 1;
array_multisort($ids, $data, SORT_ASC);
foreach(array_unique($ids) as $key => $value)
$_total *= $data[$key];
return $_total;
}
echo "Max: ".getMaxData($ids, $data)."<br />";
echo "Min: ".getMinData($ids, $data)."<br />";
?>
I am not sure if I understood correctly but isn't associative arrays what you need?
$foo = Array(2 => 1441, 3 => 1313 .... )
http://php.net/manual/en/language.types.array.php
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