FRONTEND_MVC/models/Informers.php

<?php

namespace app\models;

use Yii;
use yii\base\Model;

/**
 * This is the model class for table "Informers".
 *
 */
class Informers extends Model
{
	public $curs_usd;
    public $curs_eur;
	public $curs_cny;
    public $curs_btc;
    public $temperature;
	public static $filecbr = '/home/admin/temp/cbr';
	public static $filebtc = '/home/admin/import/btc';
	public static $filetemp = '/home/admin/temp/temperature';
    /**
     * {@inheritdoc}
     */
    public function rules()
    {
        return [
            [['curs_usd', 'curs_eur', 'curs_cny', 'curs_btc', 'temperature'], 'float'],
        ];
    }

    /**
     * {@inheritdoc}
     */
    public function attributeLabels()
    {
        return [
            'curs_usd' => 'USD',
            'curs_eur' => 'EUR',
            'curs_cny' => 'CNY',
            'curs_btc' => 'BTC',
            'temperature' => 'temperature'
        ];
    }

    /**
     * {@inheritdoc}
     */
    public static function GetСurrency()
    {
		return \Yii::$app->cache->getOrSet("curce", function (){
            $request = @file_get_contents( self::$filecbr );
            if( $request ){
				$request = json_decode($request, true);
				if( isset($request['Valute']['USD']) && isset($request['Valute']['EUR']) && isset($request['Valute']['CNY']) ){
					$result['last_updated'] = date('Y-m-d H:i:s', strtotime($request['Date']));
					//USD
					$result['USD']['value'] = round($request['Valute']['USD']['Value'], 2);
					$result['USD']['dynamics'] = $request['Valute']['USD']['Value']>$request['Valute']['USD']['Previous']?'up':'down';
					//EUR
					$result['EUR']['value'] = round($request['Valute']['EUR']['Value'], 2);
					$result['EUR']['dynamics'] = $request['Valute']['EUR']['Value']>$request['Valute']['CNY']['Previous']?'up':'down';
					//CNY
					$result['CNY']['value'] = round($request['Valute']['CNY']['Value']/$request['Valute']['CNY']['Nominal'], 2);
					$result['CNY']['dynamics'] = $request['Valute']['CNY']['Value']>$request['Valute']['CNY']['Previous']?'up':'down';

					$request2 = @file_get_contents( self::$filebtc );
					$result['BTC']['value'] = 0;
					$result['BTC']['dynamics'] = '';
					if( $request2 ){
						$request2 = json_decode($request2, true);
						if( isset($request2['USD']['last']) ){
							$result['BTC']['value'] = round($request2['USD']['last'], 2);
							$result['BTC']['dynamics'] = $request2['USD']['15m']>$request2['USD']['last']?'up':'down';
						}
					}

					return  $result;
				}
			}else{
				return false;
			}
		}, 7200 );
	}
    public static function GetTemperature()
    {
		return \Yii::$app->cache->getOrSet("temperature", function (){
            $request = @file_get_contents( self::$filetemp );
            if( $request !== false ){
				return $request;
			}
			return false;
		},
		1);
	}
}