PHP Classes

PHP Secure Token Generator: Create and validate tokens stored in MySQL table

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Version License PHP version Categories
itoken 1.0.0BSD License5PHP 5, Databases, Validation, Security


This class can generate and validate tokens stored in a database.

It can generate a unique token and store it in a database table using PDO.

The token values can be valid for a given expiry time that by default it is 60 seconds.

The class can also validate the token value by checking if it exists and is still valid by looking at the token expiry time.

The token may also be refreshed to extend its lifetime, or destroyed so it is no longer valid.

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 * User: Aleksandar Zivanovic <>

/** Load required class */
require_once __DIR__ . '/iToken.php';

$dbHost = 'db_host';

$dbUser = 'db_user';

$dbPass = 'db_pass';

$dbName = 'db_name';

$dbPort = 3306;

// Connect to database ($dbPort is not required, if not set default value is used, default value of port is 3306)
iToken::establishDatabaseConnection($dbHost, $dbUser, $dbPass, $dbName, $dbPort);

// Create itokens table if it doesn't exists

// Get iToken instance
$iToken = new iToken();

// Generate normal token
$token = $iToken->generate();

"Token created: {$token}\n";

"Token {$token} is valid {$iToken->isValid($token)}\n";

// Check is token is valid
if ($iToken->isValid($token)) {

// Remove token

"Token {$token} removed.\n";


// Generate entity token
$entityToken = $iToken->generate('EntityID');

"Entity Token created: {$entityToken}\n";

"Entity Token {$entityToken} is valid {$iToken->isValid($entityToken, 'EntityID')}\n";

// Check is entity token valid
if ($iToken->isValid($entityToken, 'EntityID')) {

// Remove all tokens for given entity

"Entity Tokens removed.\n";


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Plain text file iToken.php Class Main class

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