What is the best practice for storing checkbox values in a database using PHP?

When storing checkbox values in a database using PHP, it is best practice to serialize the values before storing them in a single database field. This allows you to easily store and retrieve multiple checkbox values as a single string. When retrieving the values, you can unserialize the string to get back the array of checkbox values. 

// Serialize checkbox values before storing in the database
$checkbox_values = $_POST['checkbox_values'];
$serialized_values = serialize($checkbox_values);

// Store serialized values in the database
$query = "INSERT INTO table_name (checkbox_values) VALUES ('$serialized_values')";
// Execute query

// Retrieve serialized values from the database
$query = "SELECT checkbox_values FROM table_name WHERE id = 1";
$result = mysqli_query($connection, $query);
$row = mysqli_fetch_assoc($result);
$retrieved_values = unserialize($row['checkbox_values']);

// Use retrieved values as an array
foreach ($retrieved_values as $value) {
    echo $value . "<br>";
}

Keywords

PHP checkbox values database storing best practice

Related Questions