Compare array1 with the arrays of a multidimensional array (Array2 & array3) - php

Question

I want to compare the values of sandra_array with john_array and then with sem_array.
I can compare sandra_array with john_array with:
<?php
$sandra_array = array("soccer" => "10", "basketball" => "20", "atletics" => "40");
$john_array = array("soccer" => "15", "basketball" => "15", "atletics" => "45");
$sem_array = array("soccer" => "5", "basketball" => "10", "atletics" => "50");
$common_sports = array_keys(array_intersect_key($sandra_array, $john_array));
$points_sandra_array = $points_john_array = array_fill_keys($common_sports, 0);
foreach ($common_sports as $common_sport) {
if ($sandra_array[$common_sport] > $john_array[$common_sport]) {
$points_sandra_array[$common_sport]++;
} else if ($sandra_array[$common_sport] < $john_array[$common_sport]) {
$points_john_array[$common_sport]++;
}
}
foreach ($common_sports as $common_sport) {
}
echo "Sandra (", array_sum($points_sandra_array).") vs John (", array_sum($points_john_array).")";
?>
Result
Sandra (1) vs John (2)
I want to have also the results of Sandra against Sem. Like this:
Sandra (1) vs John (2)
Sandra (2) vs Sem(1)
I was thinking about making the following multidimensional array:
$array_other_players = array($john_array,$sem_array);
and then with foreach I will compare first the points of Sandra with the points of John and then with the points of Sem. But I don't know how to do it.
Could you help me with this?

Answer 1

The solution is:
First declare an array containing opponents players' array, like this:
$players_array = array('John' => $john_array, 'Sem' => $sem_array);
And then loop through each opponent player to calculate the final score.
So your code should be like this:
$sandra_array = array("soccer" => "10", "basketball" => "20", "atletics" => "40");
$john_array = array("soccer" => "15", "basketball" => "15", "atletics" => "45");
$sem_array = array("soccer" => "5", "basketball" => "10", "atletics" => "50");
// Declare an array containing opponents players' array
$players_array = array('John' => $john_array, 'Sem' => $sem_array);
// Loop through each opponent player to calculate the final score
foreach($players_array as $opponent_player => $opponent_player_array){
$common_sports = array_keys(array_intersect_key($sandra_array, $opponent_player_array));
$points_sandra_array = $points_opponent_array = array_fill_keys($common_sports, 0);
foreach ($common_sports as $common_sport) {
if ($sandra_array[$common_sport] > $opponent_player_array[$common_sport]) {
$points_sandra_array[$common_sport]++;
} else if ($sandra_array[$common_sport] < $opponent_player_array[$common_sport]) {
$points_opponent_array[$common_sport]++;
}
}
echo "Sandra (". array_sum($points_sandra_array).") vs {$opponent_player} (". array_sum($points_opponent_array) .")<br />";
}
Output:
Sandra (1) vs John (2)
Sandra (2) vs Sem (1)