What are the best practices for handling multiple results for each person on different dates in PHP?

When handling multiple results for each person on different dates in PHP, one approach is to use multidimensional arrays where each person's results are stored in a subarray indexed by the date. This allows for easy retrieval and manipulation of the data for each person. Another approach is to use objects to represent each person, with properties for their results on different dates. This can provide a more structured and object-oriented way to handle the data. 

// Using multidimensional arrays
$personResults = [];

// Store results for person1 on different dates
$personResults['person1']['2022-01-01'] = 85;
$personResults['person1']['2022-01-15'] = 78;

// Retrieve and display results for person1 on a specific date
$date = '2022-01-01';
echo 'Person1\'s result on ' . $date . ': ' . $personResults['person1'][$date];

// Using objects
class Person {
    public $name;
    public $results = [];

    public function addResult($date, $result) {
        $this->results[$date] = $result;
    }
}

// Create a new Person object for person1
$person1 = new Person();
$person1->name = 'Person1';

// Add results for person1 on different dates
$person1->addResult('2022-01-01', 85);
$person1->addResult('2022-01-15', 78);

// Retrieve and display results for person1 on a specific date
$date = '2022-01-01';
echo $person1->name . '\'s result on ' . $date . ': ' . $person1->results[$date];

Keywords

SQL JOIN GROUP BY PHP arrays data normalization

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