How to get HTTPS response headers in PHP?

Question

Like the title

Answer 1

Use the apache_request_headers function to obtain, such as

$headers = apache_request_headers();

foreach ($headers as $header => $value) {
    echo "$header: $value <br />\n";
}
获取到的信息就是
Accept: */*
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0
Host: www.example.com
Connection: Keep-Alive