What is the function in PHP that can be used to sum up values in a specific column of a database table?

To sum up values in a specific column of a database table in PHP, you can use the SQL SUM() function in conjunction with a query to retrieve the sum of the desired column. This function calculates the sum of all the values in the specified column. 

// Connect to the database
$pdo = new PDO('mysql:host=localhost;dbname=database_name', 'username', 'password');

// Query to sum up values in a specific column
$query = $pdo->query("SELECT SUM(column_name) AS total_sum FROM table_name");

// Fetch the result
$result = $query->fetch(PDO::FETCH_ASSOC);

// Output the sum
echo $result['total_sum'];

Keywords

PHP function sum database table column

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