What's with the weird curl error?

Question

Yii

I'm trying to save partner sites in yii2 on the topic of whether the product is in stock, I organized it using this method

public function haveParse($goods){
        $ch = curl_init();
        $url="$goods->url";
        curl_setopt($ch, CURLOPT_URL, $url);
        return curl_exec($ch);
    }

comes the followingboolean true

var_dump($goods->url)==string 'http://xn----7sblaeg7cgj4a.com.ua/ve6rhnjaja-odejda/3339-palto-frak.html'

if here curl_setopt($ch, CURLOPT_URL, $url);replace with

curl_setopt($ch, CURLOPT_URL, 'http://xn----7sblaeg7cgj4a.com.ua/ve6rhnjaja-odejda/3339-palto-frak.html');

the page is complete. Don't tell me what's the problem.

Answer 1

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $goods->url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
return curl_exec($ch);

Answer 2

$url="$goods->url";- Quotes why? It's the same variable. You write the string $goods->url" in $url and not the value from the variable