How can PHP be used to handle complex SQL queries that involve sorting and grouping?

When handling complex SQL queries that involve sorting and grouping in PHP, you can use the PDO (PHP Data Objects) extension to interact with the database. PDO allows you to prepare and execute SQL statements, bind parameters, and fetch results. By using PDO, you can easily handle complex queries with sorting and grouping requirements. 

<?php
// Connect to the database using PDO
$dsn = 'mysql:host=localhost;dbname=mydatabase';
$username = 'username';
$password = 'password';
$pdo = new PDO($dsn, $username, $password);

// Prepare and execute a complex SQL query with sorting and grouping
$query = "SELECT column1, column2, SUM(column3) as total FROM mytable GROUP BY column1 ORDER BY total DESC";
$statement = $pdo->prepare($query);
$statement->execute();

// Fetch and display the results
while ($row = $statement->fetch(PDO::FETCH_ASSOC)) {
    echo $row['column1'] . ' - ' . $row['column2'] . ' - ' . $row['total'] . '<br>';
}
?>

Keywords

PHP SQL queries sorting grouping complex.

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