Are there any specific functions or libraries in PHP that can assist in handling incoming HTTP headers?

When handling incoming HTTP headers in PHP, you can use the `getallheaders()` function to retrieve all the HTTP headers sent by the client in an associative array. This function makes it easy to access and work with the incoming headers in your PHP script. 

$headers = getallheaders();

foreach ($headers as $key => $value) {
    echo $key . ': ' . $value . '<br>';
}

Keywords

PHP HTTP headers functions libraries handling incoming

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