What are some common pitfalls when using SQL queries to manipulate data from a CSV file in PHP?

One common pitfall when using SQL queries to manipulate data from a CSV file in PHP is not properly handling data types. Make sure to correctly specify the data types when creating tables or inserting values to avoid unexpected results. Additionally, be cautious of SQL injection vulnerabilities by using prepared statements to sanitize user input. 

// Example code snippet to handle data types and prevent SQL injection

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

// Prepare a SQL statement with placeholders
$stmt = $pdo->prepare("INSERT INTO mytable (column1, column2) VALUES (:value1, :value2)");

// Bind parameters with correct data types
$stmt->bindParam(':value1', $value1, PDO::PARAM_INT);
$stmt->bindParam(':value2', $value2, PDO::PARAM_STR);

// Insert values from CSV file
$handle = fopen("data.csv", "r");
while (($data = fgetcsv($handle)) !== false) {
    $value1 = $data[0];
    $value2 = $data[1];
    $stmt->execute();
}
fclose($handle);

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