What is the significance of using addslashes when inserting data into a MySQL database in PHP?

When inserting data into a MySQL database in PHP, it is important to use addslashes to escape special characters like quotes, slashes, and NULL bytes. This helps prevent SQL injection attacks and ensures that the data is inserted correctly into the database without causing syntax errors. 

// Example of using addslashes to insert data into a MySQL database in PHP
$connection = mysqli_connect("localhost", "username", "password", "database");

$name = addslashes($_POST['name']);
$email = addslashes($_POST['email']);

$query = "INSERT INTO users (name, email) VALUES ('$name', '$email')";
mysqli_query($connection, $query);

mysqli_close($connection);

Keywords

PHP MySQL addslashes data insertion security

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