Find lowest value from multiple array php [closed] - php

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I'm developing a number based game to calculate the combined lowest number from a multiple array.
Example:
$arr1 = array('score_1'=>0,'score_2'=>5,'score_3'=>0,'score_4'=>2,'score_5'=>1);
$arr2 = array('score_1'=>3,'score_2'=>0,'score_3'=>2,'score_4'=>0,'score_5'=>0);
$arr3 = array('score_1'=>0,'score_2'=>0,'score_3'=>0,'score_4'=>4,'score_5'=>0);
The above example result will be:
score_1 = 0+3+0 = 3
score_2 = 5+0+0 = 5
score_3 = 0+2+0 = 2
score_4 = 2+0+4 = 6
score_5 = 1+0+0 = 1 /*This is the winning number*/
Each array is a submission from each user, stored in a single db field (instead of in separate fields eg.. score_1,score_e etc...)
I'm not using separate table field because the game requires 180 score fields later. To optimize the database I'm using an array instead of table field for each score.
I'm storing each row like this:
score_1:0,score_2:0 etc...
Later I'm looping through each row like:
$main_score[main_score] = $array_score[score_$key]=$value;
And the end result for each row:
$arr1 = array('score_1'=>0,'score_2'=>5,'score_3'=>0,'score_4'=>2,'score_5'=>1);
How do I make the calculation?
Explain me how am i gonna deal with this situation: Ref: below image.
This isn't it, there are more 210 individual inputs more to go.
Similar application

Answer 1

You really should read about database normalization, then if you normalize your database, it isn't important if you store 5 or 100 scores per user. Take a look at the following table schemas:
users
id
name
scores
id
user_id
score_nr
value
To fetch your example result from these tables, you have to use the following query:
SELECT `score_nr`, SUM(`value`) AS `value_sum`
FROM `scores` GROUP BY `score_nr`
To fetch the score_nr with the smallest sum:
SELECT `score_nr`, SUM(`value`) AS `value_sum`
FROM `scores` GROUP BY `score_nr` ORDER BY `value_sum` ASC LIMIT 1

Answer 2

Loop trough the arrays simultaneously and calculate the sum of them. Keep track of the smallest key and value:
$smallest_val = PHP_INT_MAX;
$smallest_key = '';
foreach($arr1 as $key => $val) {
echo $key ." = ". $val ."+". $arr2[$key] ."+". $arr3[$key] ."<br />";
$sum = $val + $arr2[$key] + $arr3[$key];
if($sum < $smallest_val) {
$smallest_val = $sum;
$smallest_key = $key;
}
}
echo "Winrar: ". $smallest_key . " with value " . $smallest_val;
Working example

Answer 3

i think you can make one new table on your database for scoring.
for example you have table game which primary key by game_id
table : scoring
------------------------------------
|id|game_id | score_no| arr | score |
------------------------------------
|1 | 0 | score_1 | 1 | 0 |
|2 | 0 | score_2 | 1 | 5 |
|3 | 0 | score_3 | 1 | 0 |
|4 | 0 | score_4 | 1 | 2 |
|5 | 0 | score_5 | 1 | 1 |
|6 | 0 | score_1 | 2 | 0 |
|7 | 0 | score_2 | 2 | 5 |
|8 | 0 | score_3 | 2 | 0 |
|9 | 0 | score_4 | 2 | 2 |
|10| 0 | score_5 | 2 | 1 |
|11| 0 | score_1 | 3 | 0 |
|12| 0 | score_2 | 3 | 5 |
|13| 0 | score_3 | 3 | 0 |
|14| 0 | score_4 | 3 | 2 |
|15| 0 | score_5 | 3 | 1 |
------------------------------------
and you can select it with query
SELECT score_no, SUM(`score`) AS `sum_score` FROM `scores` GROUP BY game_id, score_no

Answer 4

If you want to stick with your current schema, the solution with the least amount of code should be the following:
$summedScores = array_map('array_sum', array_merge_recursive($arr1, $arr2, $arr3));
asort($summedScores, SORT_NUMERIC);
reset($summedScores);
$winnerScoreNr = key($summedScores);