How can the PHP code be optimized to improve reliability and accuracy of HTTP header retrieval?

To optimize the PHP code for retrieving HTTP headers, we can use the built-in function `get_headers()` instead of manually parsing the headers. This function returns an array of all the headers in the response, making it more reliable and accurate. By using `get_headers()`, we can simplify our code and ensure that we are retrieving all the necessary headers without missing any. 

$url = 'https://www.example.com';
$headers = get_headers($url);

foreach ($headers as $header) {
    echo $header . "<br>";
}

Keywords

PHP optimization HTTP headers reliability accuracy

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