create jwt token in php

Here's an example of how to create a JWT token in PHP using the firebase/php-jwt library:

1. Install the firebase/php-jwt library using composer:

composer require firebase/php-jwt
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2. In your PHP code, import the firebase\JWT\JWT class:

main.php
use firebase\JWT\JWT;
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3. Set your secret and payload:

main.php
$secret_key = "my_secret_key";
$payload = array(
    "user_id" => 123,
    "email" => "john.doe@example.com"
);
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4. Encode the payload to create the token:

main.php
$jwt_token = JWT::encode($payload, $secret_key);
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That's it! You now have a JWT token that can be sent to the client and used for authentication and authorization.