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How can database normalization impact the handling of string manipulation in PHP?

Database normalization can impact the handling of string manipulation in PHP by ensuring that data is stored efficiently and without redundancy. By organizing data into separate tables and reducing data duplication, normalization can make it easier to manipulate strings without inconsistencies. To handle string manipulation effectively in PHP with normalized databases, it's important to use JOIN queries to retrieve related data from multiple tables.

php 
// Example of using JOIN query to retrieve related data from normalized tables
$query = "SELECT users.username, orders.order_number 
          FROM users 
          JOIN orders ON users.user_id = orders.user_id 
          WHERE users.user_id = 123";

// Execute the query and process the results
$result = mysqli_query($connection, $query);
if(mysqli_num_rows($result) > 0) {
    while($row = mysqli_fetch_assoc($result)) {
        echo "Username: " . $row['username'] . " | Order Number: " . $row['order_number'] . "<br>";
    }
} else {
    echo "No results found.";
}

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