How can the use of quotation marks in PHP scripts impact data insertion into a MySQL database?

When inserting data into a MySQL database using PHP, the use of quotation marks around variables can cause syntax errors or SQL injection vulnerabilities. To prevent this, it is recommended to use prepared statements with placeholders instead of directly inserting variables into the SQL query. 

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

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

// Bind the values to the placeholders
$stmt->bindParam(':value1', $value1);
$stmt->bindParam(':value2', $value2);

// Execute the statement
$stmt->execute();

Keywords

PHP quotation marks MySQL database data insertion impact

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