Laravel Encrypt & Decrypt string

laravel_encrypt_decrypt.php

<?php

# Laravel provides a convenient way to encrypt/decrypt a string i.e. encrypt() and decrypt() methods, but the output string is too long.
# It also provides a bcrypt() method where the output string is not lengthy but is not URL friendly.
# Here's a function to encrypt/decrypt a string, which is also URL friendly and the encrypted string length is way small:

/**
 * Encrypt & decrypt strings.
 * 
 * Create secret key & iv bu running the following commands
 * $secret_key = echo base64_encode(openssl_random_pseudo_bytes(32));
 * $secret_iv = echo base64_encode(openssl_random_pseudo_bytes(64));
 * 
 * @param  string  $string
 * @param  string  $action
 * 
 * @return string
 * 
 */
if (! function_exists('secret')) {
    function secret($string, $action = 'e')
    {
        $secret_key = 'YourSecretKey';
        $secret_iv = 'YourSecretIv';

        $output = false;
        $encrypt_method = "AES-256-CBC";
        $key = hash('sha256', $secret_key);
        $iv = substr(hash('sha256', $secret_iv), 0, 16);

        if ($action == 'e') { // default, encrypt
            $output = base64_encode(openssl_encrypt($string, $encrypt_method, $key, 0, $iv));
        } else if ($action == 'd') { // decrypt
            $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
        }

        return $output;
    }
}

?>