Are there any specific PHP functions or techniques that can help retrieve multiple rows from a database in a single query?

When retrieving multiple rows from a database in PHP, you can use the `fetchAll()` method provided by PDO (PHP Data Objects) to fetch all rows at once in a single query. This method returns an array containing all rows fetched from the database query result. 

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

// Prepare and execute the query
$stmt = $pdo->prepare("SELECT * FROM my_table");
$stmt->execute();

// Fetch all rows at once
$rows = $stmt->fetchAll();

// Loop through the fetched rows
foreach ($rows as $row) {
    // Process each row as needed
    echo $row['column_name'] . "<br>";
}

Keywords

PHP database multiple rows single query retrieval

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