# authenticate

Authenticate the current connection with a JWT token using the authenticate method in the SurrealDB PHP SDK.

Authenticates the current connection with a JWT token.

```php title="Method Syntax"
$db->authenticate($token)
```

## Arguments
<table>
    <thead>
        <tr>
            <th colspan="2" scope="col">Arguments</th>
			<th colspan="2" scope="col">Type</th>
            <th colspan="2" scope="col">Description</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td colspan="2" scope="row" data-label="Arguments">
                <code>token</code>
                <label label="required" />
            </td>
			<td colspan="2" scope="row" data-label="Type">
				<code>string</code>
			</td>
            <td colspan="2" scope="row" data-label="Description">
                The JWT authentication token.
            </td>
        </tr>
    </tbody>
</table>

## Example usage
```php
$db->authenticate('eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJTdXJyZWFsREIiLCJpYXQiOjE1MTYyMzkwMjIsIm5iZiI6MTUxNjIzOTAyMiwiZXhwIjoxODM2NDM5MDIyLCJOUyI6InRlc3QiLCJEQiI6InRlc3QiLCJTQyI6InVzZXIiLCJJRCI6InVzZXI6dG9iaWUifQ.N22Gp9ze0rdR06McGj1G-h2vu6a6n9IVqUbMFJlOxxA');
```

You can invalidate the authentication for the current connection using the [`invalidate()` method](/docs/reference/php/v1/methods/invalidate.md).