Question

How to multiply values in each row in 2D associative and calculate the total in PHP

Answer 1

$items = array(     
            array("Price" => 19.90, "Quantity" => 3),
            array("Price" => 12.90, "Quantity" => 5),
            array("Price" => 80.00, "Quantity" => 2),
           );  
        
// ((19.90 * 3) = 59.7) + ((12.90 * 5) = 64.5) + ((80.00 * 2) = 160) = 284.2

$total = array_sum(array_map(function($items) { 
    return $items['Price'] * $items['Quantity']; 
}, $items));

echo "Total = " . $total . "\n";




/*
run:

Total = 284.2

*/

 

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