InlineKeyboardButton.php
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InlineKeyboardButton.php
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	<?php
	/**
	* This file is part of the TelegramBot package.
	*
	* (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
	*
	* For the full copyright and license information, please view the LICENSE
	* file that was distributed with this source code.
	*/

	namespace Longman\TelegramBot\Entities;

	use Longman\TelegramBot\Exception\TelegramException;

	class InlineKeyboardButton extends Entity
	{
	/**
	* @var mixed\|null
	*/
	protected $text;

	/**
	* @var string
	*/
	protected $url;

	/**
	* @var mixed
	*/
	protected $callback_data;

	/**
	* @var mixed
	*/
	protected $switch_inline_query;

	/**
	* InlineKeyboardButton constructor.
	*
	* @param array $data
	* @throws \Longman\TelegramBot\Exception\TelegramException
	*/
	public function __construct(array $data = [])
	{
	$this->text = isset($data['text']) ? $data['text'] : null;
	if (empty($this->text)) {
	throw new TelegramException('text is empty!');
	}

	$num_params = 0;
	foreach (['url', 'callback_data', 'switch_inline_query'] as $param) {
	if (!empty($data[$param])) {
	$this->$param = $data[$param];
	$num_params++;
	}
	}
	if ($num_params !== 1) {
	throw new TelegramException('You must use only one of these fields: url, callback_data, switch_inline_query!');
	}
	}
	}