How to find and make sum of different numbers from array? - php

Question

I've read some texts and searched topics, but nothing help me. I'm beginner in PHP. I have array where are variables $qA01_1 up to $qA30_5 and their values can be different 0 or 1 or 5. From array I would like to find all variables with value 1 and make sum. Same for number 5.
$qA01_1 = $_SESSION['qA01_1'];
$qA01_2 = $_SESSION['qA01_2'];
$qA01_3 = $_SESSION['qA01_3'];
$qA01_4 = $_SESSION['qA01_4'];
$qA01_5 = $_SESSION['qA01_5'];
$qA02_1 = $_SESSION['qA02_1'];
$qA02_2 = $_SESSION['qA02_2'];
$qA02_3 = $_SESSION['qA02_3'];
$qA02_4 = $_SESSION['qA02_4'];
$qA02_5 = $_SESSION['qA02_5'];
$qA03_1 = $_SESSION['qA03_1'];
$qA03_2 = $_SESSION['qA03_2'];
$qA03_3 = $_SESSION['qA03_3'];
$qA03_4 = $_SESSION['qA03_4'];
$qA03_5 = $_SESSION['qA03_5'];
$qA04_1 = $_SESSION['qA04_1'];
$qA04_2 = $_SESSION['qA04_2'];
$qA04_3 = $_SESSION['qA04_3'];
$qA04_4 = $_SESSION['qA04_4'];
$qA04_5 = $_SESSION['qA04_5'];
$qA05_1 = $_SESSION['qA05_1'];
$qA05_2 = $_SESSION['qA05_2'];
$qA05_3 = $_SESSION['qA05_3'];
$qA05_4 = $_SESSION['qA05_4'];
$qA05_5 = $_SESSION['qA05_5'];
$qA06_1 = $_SESSION['qA06_1'];
$qA06_2 = $_SESSION['qA06_2'];
$qA06_3 = $_SESSION['qA06_3'];
$qA06_4 = $_SESSION['qA06_4'];
$qA06_5 = $_SESSION['qA06_5'];
$qA07_1 = $_SESSION['qA07_1'];
$qA07_2 = $_SESSION['qA07_2'];
$qA07_3 = $_SESSION['qA07_3'];
$qA07_4 = $_SESSION['qA07_4'];
$qA07_5 = $_SESSION['qA07_5'];
$qA08_1 = $_SESSION['qA08_1'];
$qA08_2 = $_SESSION['qA08_2'];
$qA08_3 = $_SESSION['qA08_3'];
$qA08_4 = $_SESSION['qA08_4'];
$qA08_5 = $_SESSION['qA08_5'];
$qA09_1 = $_SESSION['qA09_1'];
$qA09_2 = $_SESSION['qA09_2'];
$qA09_3 = $_SESSION['qA09_3'];
$qA09_4 = $_SESSION['qA09_4'];
$qA09_5 = $_SESSION['qA09_5'];
$qA10_1 = $_SESSION['qA10_1'];
$qA10_2 = $_SESSION['qA10_2'];
$qA10_3 = $_SESSION['qA10_3'];
$qA10_4 = $_SESSION['qA10_4'];
$qA10_5 = $_SESSION['qA10_5'];
$qA11_1 = $_SESSION['qA11_1'];
$qA11_2 = $_SESSION['qA11_2'];
$qA11_3 = $_SESSION['qA11_3'];
$qA11_4 = $_SESSION['qA11_4'];
$qA11_5 = $_SESSION['qA11_5'];
$qA12_1 = $_SESSION['qA12_1'];
$qA12_2 = $_SESSION['qA12_2'];
$qA12_3 = $_SESSION['qA12_3'];
$qA12_4 = $_SESSION['qA12_4'];
$qA12_5 = $_SESSION['qA12_5'];
$qA13_1 = $_SESSION['qA13_1'];
$qA13_2 = $_SESSION['qA13_2'];
$qA13_3 = $_SESSION['qA13_3'];
$qA13_4 = $_SESSION['qA13_4'];
$qA13_5 = $_SESSION['qA13_5'];
$qA14_1 = $_SESSION['qA14_1'];
$qA14_2 = $_SESSION['qA14_2'];
$qA14_3 = $_SESSION['qA14_3'];
$qA14_4 = $_SESSION['qA14_4'];
$qA14_5 = $_SESSION['qA14_5'];
$qA15_1 = $_SESSION['qA15_1'];
$qA15_2 = $_SESSION['qA15_2'];
$qA15_3 = $_SESSION['qA15_3'];
$qA15_4 = $_SESSION['qA15_4'];
$qA15_5 = $_SESSION['qA15_5'];
$qA16_1 = $_SESSION['qA16_1'];
$qA16_2 = $_SESSION['qA16_2'];
$qA16_3 = $_SESSION['qA16_3'];
$qA16_4 = $_SESSION['qA16_4'];
$qA16_5 = $_SESSION['qA16_5'];
$qA17_1 = $_SESSION['qA17_1'];
$qA17_2 = $_SESSION['qA17_2'];
$qA17_3 = $_SESSION['qA17_3'];
$qA17_4 = $_SESSION['qA17_4'];
$qA17_5 = $_SESSION['qA17_5'];
$qA18_1 = $_SESSION['qA18_1'];
$qA18_2 = $_SESSION['qA18_2'];
$qA18_3 = $_SESSION['qA18_3'];
$qA18_4 = $_SESSION['qA18_4'];
$qA18_5 = $_SESSION['qA18_5'];
$qA19_1 = $_SESSION['qA19_1'];
$qA19_2 = $_SESSION['qA19_2'];
$qA19_3 = $_SESSION['qA19_3'];
$qA19_4 = $_SESSION['qA19_4'];
$qA19_5 = $_SESSION['qA19_5'];
$qA20_1 = $_SESSION['qA20_1'];
$qA20_2 = $_SESSION['qA20_2'];
$qA20_3 = $_SESSION['qA20_3'];
$qA20_4 = $_SESSION['qA20_4'];
$qA20_5 = $_SESSION['qA20_5'];
$qA21_1 = $_SESSION['qA21_1'];
$qA21_2 = $_SESSION['qA21_2'];
$qA21_3 = $_SESSION['qA21_3'];
$qA21_4 = $_SESSION['qA21_4'];
$qA21_5 = $_SESSION['qA21_5'];
$qA22_1 = $_SESSION['qA22_1'];
$qA22_2 = $_SESSION['qA22_2'];
$qA22_3 = $_SESSION['qA22_3'];
$qA22_4 = $_SESSION['qA22_4'];
$qA22_5 = $_SESSION['qA22_5'];
$qA23_1 = $_SESSION['qA23_1'];
$qA23_2 = $_SESSION['qA23_2'];
$qA23_3 = $_SESSION['qA23_3'];
$qA23_4 = $_SESSION['qA23_4'];
$qA23_5 = $_SESSION['qA23_5'];
$qA24_1 = $_SESSION['qA24_1'];
$qA24_2 = $_SESSION['qA24_2'];
$qA24_3 = $_SESSION['qA24_3'];
$qA24_4 = $_SESSION['qA24_4'];
$qA24_5 = $_SESSION['qA24_5'];
$qA25_1 = $_SESSION['qA25_1'];
$qA25_2 = $_SESSION['qA25_2'];
$qA25_3 = $_SESSION['qA25_3'];
$qA25_4 = $_SESSION['qA25_4'];
$qA25_5 = $_SESSION['qA25_5'];
$qA26_1 = $_SESSION['qA26_1'];
$qA26_2 = $_SESSION['qA26_2'];
$qA26_3 = $_SESSION['qA26_3'];
$qA26_4 = $_SESSION['qA26_4'];
$qA26_5 = $_SESSION['qA26_5'];
$qA27_1 = $_SESSION['qA27_1'];
$qA27_2 = $_SESSION['qA27_2'];
$qA27_3 = $_SESSION['qA27_3'];
$qA27_4 = $_SESSION['qA27_4'];
$qA27_5 = $_SESSION['qA27_5'];
$qA28_1 = $_SESSION['qA28_1'];
$qA28_2 = $_SESSION['qA28_2'];
$qA28_3 = $_SESSION['qA28_3'];
$qA28_4 = $_SESSION['qA28_4'];
$qA28_5 = $_SESSION['qA28_5'];
$qA29_1 = $_SESSION['qA29_1'];
$qA29_2 = $_SESSION['qA29_2'];
$qA29_3 = $_SESSION['qA29_3'];
$qA29_4 = $_SESSION['qA29_4'];
$qA29_5 = $_SESSION['qA29_5'];
$qA30_1 = $_POST['qA30_1'];
$qA30_2 = $_POST['qA30_2'];
$qA30_1 = (isset($_POST['qA30_1'])) ? $_POST['qA30_1'] : 0;
$qA30_2 = (isset($_POST['qA30_2'])) ? $_POST['qA30_2'] : 0;
$qA30_3 = (isset($_POST['qA30_3'])) ? $_POST['qA30_3'] : 0;
$qA30_4 = (isset($_POST['qA30_4'])) ? $_POST['qA30_4'] : 0;
$qA30_5 = (isset($_POST['qA30_5'])) ? $_POST['qA30_5'] : 0;
Here is my proposal which do not work. I thing that I should to do something with "array" .
// Sum of all numbers 1
$sumOne = 0;
for ($i = 0; $i <= 3; $i++) {
for($j = 0; $j <= 9; $j++) {
for($k = 1; $k <= 5; $k++){
$u = 'qA_' . $i . $j. '_' . $k;
if ($u==1){
$sumOnet+=1;
}
}
}
}
echo "<br/>SumOne:" . " " . round($sumOne[0], 0);

Answer 1

You really should stick with an array. If you define an array within the $_SESSION array and use that it will be much simpler:
$_SESSION['data']['qA01_1'] = 0;
$_SESSION['data']['qA01_2'] = 1;
$_SESSION['data']['qA01_3'] = 5;
$counts = array_count_values($_SESSION['data']);
if(isset($counts[0])) { echo $counts[0]; } // sum of any 0s is 0 so here is the count
if(isset($counts[1])) { echo $counts[1]; } // sum of any 1s will be the count
if(isset($counts[5])) { echo $counts[5] * 5; }

Answer 2

If I understand the question correctly, you want to sum up all individual values in your array.
You can use array_count_values() for that, it returns you the number of occurances of each value where the value itself is the key:
foreach (array_count_values($_SESSION) as $value => $count) {
echo 'sum of ' . $value . ' values: ' . ($value * $count) . "<br>";
}
No idea where the POST variables fit in though...