What special characters should be escaped when storing data in MySQL using PHP?

When storing data in MySQL using PHP, special characters such as single quotes ('), double quotes ("), backslashes (\), and NULL bytes (\0) should be escaped to prevent SQL injection attacks and ensure data integrity. This can be done using the mysqli_real_escape_string function in PHP, which escapes these special characters before inserting the data into the database. 

// Escape special characters before storing data in MySQL
$connection = mysqli_connect("localhost", "username", "password", "database");

// Assuming $data contains the data to be stored
$escaped_data = mysqli_real_escape_string($connection, $data);

// Insert the escaped data into the database
$query = "INSERT INTO table_name (column_name) VALUES ('$escaped_data')";
mysqli_query($connection, $query);

Keywords

PHP MySQL special characters escaping data storage

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