What is the best way to sum up points for each user in a MySQL table using PHP?

To sum up points for each user in a MySQL table using PHP, you can use a SQL query to calculate the total points for each user and store the result in a new column in the table. You can then fetch this data using PHP and display it as needed. 

<?php
// Connect to MySQL database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// SQL query to sum up points for each user
$sql = "UPDATE users SET total_points = (SELECT SUM(points) FROM user_points WHERE user_points.user_id = users.user_id)";

if ($conn->query($sql) === TRUE) {
    echo "Points summed up successfully";
} else {
    echo "Error: " . $conn->error;
}

// Close connection
$conn->close();
?>

Keywords

PHP MySQL SUM function user points table manipulation

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