What are the potential pitfalls of using a while loop to copy multiple records in PHP?

Using a while loop to copy multiple records in PHP can potentially lead to infinite loops if not properly controlled. To avoid this, it is important to have a condition that will eventually evaluate to false and break out of the loop. One way to do this is by fetching records from a database query and checking if there are any more records left to process. 

// Example of using a while loop to copy multiple records from a database query

// Connect to database
$connection = new mysqli('localhost', 'username', 'password', 'database');

// Query to fetch records
$query = "SELECT * FROM records";
$result = $connection->query($query);

// Check if there are records to process
if ($result->num_rows > 0) {
    // Loop through each record
    while ($row = $result->fetch_assoc()) {
        // Copy record to new location
        // Code to copy record goes here
    }
} else {
    echo "No records found.";
}

// Close database connection
$connection->close();

Keywords

while loop copy records PHP potential pitfalls data duplication

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