This repo help you to manage your Lingea api requests.
composer require zmog/php-lingea
<?php
require_once __DIR__ . '/vendor/autoload.php';
$api_key = 'you_api_key';
$TranslationApi = new \Zmog\Libs\Lingea\TranslationApi($api_key);
$text = 'Hello, my name is Mathieu.';
$translated_text = $TranslationApi->translate($text,\Zmog\Libs\Lingea\TranslationLanguage\ISO_639_2b::fromCode('eng'),\Zmog\Libs\Lingea\TranslationLanguage\ISO_639_1::fromCode('cs'),\Zmog\Libs\Lingea\TranslationFormat\Plain::instance());
?>
php test/language.php "my_api_key"
php test/translate.php "my_api_key"