How can you read user permissions in a PHP application from a database?

To read user permissions in a PHP application from a database, you can first query the database to retrieve the permissions associated with the user. You can then store these permissions in a variable or array to use throughout the application to determine access levels for different features or content. 

// Assume $userId is the user's ID
// Connect to the database
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Query the database to retrieve user permissions
$sql = "SELECT permissions FROM users WHERE id = $userId";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Store permissions in a variable or array
    $row = $result->fetch_assoc();
    $userPermissions = $row['permissions'];
} else {
    echo "User permissions not found";
}

// Close the database connection
$conn->close();

Keywords

PHP database user permissions reading application

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