php file_get_contents（$ url）没有返回与地址栏中的url相同的结果

when I copy and paste the following url in the address bar, it opens the page correctly:

https://www.lacourt.org/casesummary/ui/casesummary.aspx?CaseNumber=BC510457

but the following code returns a case not found message from the site when I run it on localhost:

    <?php
    $url = 'https://www.lacourt.org/casesummary/ui/casesummary.aspx?CaseNumber=BC510457';
    echo file_get_contents($url);
?>

Why is file_get_contents not returning the same page as when I type the url directly in the address bar? Any suggestions?

Thank you.

first, i can't connect the url, but you can try set user-agent in request header. like this :)

`

$url = 'https://www.lacourt.org/casesummary/ui/casesummary.aspx?CaseNumber=BC510457';
$header = [
'header'=>[
'method'=>'GET',
'header'=>['user-agent'=>'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36']
]
];
$ctx = stream_context_create($header);
echo file_get_contents($url,false,$ctx);

`