How can PHP be used to efficiently compare and calculate points based on user input and real results in a MySQL database?

To efficiently compare and calculate points based on user input and real results in a MySQL database, you can use PHP to retrieve the user input, query the database for the real results, compare the two, and calculate the points accordingly. This can be achieved by using SQL queries to fetch the necessary data from the database, performing the comparison and calculation in PHP, and then updating the database with the calculated points. 

<?php
// Retrieve user input
$userInput = $_POST['user_input'];

// Connect to MySQL database
$connection = mysqli_connect('localhost', 'username', 'password', 'database_name');

// Query the database for real results
$query = "SELECT real_results FROM results_table WHERE id = 1";
$result = mysqli_query($connection, $query);
$realResults = mysqli_fetch_assoc($result)['real_results'];

// Compare user input with real results and calculate points
if($userInput == $realResults) {
    $points = 10;
} else {
    $points = 0;
}

// Update database with calculated points
$updateQuery = "UPDATE users SET points = $points WHERE user_id = 1";
mysqli_query($connection, $updateQuery);

// Close database connection
mysqli_close($connection);
?>

Keywords

PHP MySQL user input comparison calculation

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