<?php

/**

* Extends HTTP request handling for local utility with backward compatibility.

*

* This code provides a wrapper around the standard `$_SERVER` variables

* to ensure compatibility with older PHP versions that may not have

* the same request information readily available.

*/

if (!function_exists('get_http_request_info')) {

/**

* Retrieves HTTP request information, handling older PHP versions.

*

* @return array An associative array containing HTTP request details.

*/

function get_http_request_info() {

$request_info = [];

// Check for common request variables. Prioritize newer methods.

$request_info['method'] = $_SERVER['REQUEST_METHOD'] ?? $_SERVER['HTTP_X_HTTP_METHOD'] ?? 'GET';

$request_info['protocol'] = $_SERVER['HTTP_SCHEMA'] ?? 'http'; // or https

$request_info['url'] = $_SERVER['REQUEST_URI'];

$request_info['query'] = $_SERVER['QUERY_STRING'];

$request_info['headers'] = $_SERVER['HTTP_HEADER'] ?? [];

// Handle older versions that might not have all variables.

if (!isset($_SERVER['HTTP_HOST'])) {

$request_info['host'] = $_SERVER['SERVER_NAME'];

} else {

$request_info['host'] = $_SERVER['HTTP_HOST'];

}

if (!isset($_SERVER['SCRIPT_NAME'])) {

$request_info['script_name'] = $_SERVER['PHP_SELF'];

} else {

$request_info['script_name'] = $_SERVER['SCRIPT_NAME'];

}

//Add any custom headers from the X-HTTP_METHOD variable for backwards compatibility.

if (isset($_SERVER['HTTP_X_HTTP_METHOD'])) {

$request_info['x_http_method'] = $_SERVER['HTTP_X_HTTP_METHOD'];

}

return $request_info;

}

}

//Example usage (can be used in your utility script)

// $request_info = get_http_request_info();

// echo "Method: " . $request_info['method'] . "\n";

// echo "URL: " . $request_info['url'] . "\n";

// echo "Host: " . $request_info['host'] . "\n";

// echo "Query: " . $request_info['query'] . "\n";

?>