How can individual values retrieved from a database be changed from a number to a letter in PHP?

To change individual values retrieved from a database from a number to a letter in PHP, you can create a mapping array that associates each number with a corresponding letter. Then, you can use this array to look up the letter value based on the retrieved number. Finally, you can replace the number with the letter in your output.

// Mapping array for numbers to letters
$numberToLetter = [
    1 => 'A',
    2 => 'B',
    3 => 'C',
    // Add more mappings as needed
];

// Retrieve the number from the database
$number = 2;

// Change the number to a letter using the mapping array
$letter = $numberToLetter[$number];

// Output the letter
echo $letter;