How can the while loop be optimized in PHP to avoid fetching only the first entry in the database?

When using a while loop to fetch data from a database in PHP, it's important to ensure that the loop continues fetching all the entries and not just the first one. This can be achieved by using the fetch() method within the while loop to fetch each row of data until there are no more rows left. By doing this, the loop will iterate through all the entries in the database. 

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

// Prepare and execute the query
$stmt = $pdo->query('SELECT * FROM mytable');

// Fetch all rows using a while loop
while ($row = $stmt->fetch()) {
    // Process each row of data here
    echo $row['column_name'] . "<br>";
}

Keywords

while loop optimization PHP database fetching

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