What are some best practices for using PHP to access information about the current page?

When working with PHP to access information about the current page, it is important to utilize superglobal variables like $_SERVER to retrieve relevant data such as the current URL, request method, or user agent. By accessing these variables, you can gather valuable information about the current page and use it for various purposes in your application. 

// Get the current page URL
$currentURL = "http://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";

// Get the request method (GET, POST, etc.)
$requestMethod = $_SERVER['REQUEST_METHOD'];

// Get the user agent of the current visitor
$userAgent = $_SERVER['HTTP_USER_AGENT'];

// Display the gathered information
echo "Current URL: $currentURL <br>";
echo "Request Method: $requestMethod <br>";
echo "User Agent: $userAgent <br>";

Keywords

$_SERVER $_GET $_POST $_REQUEST header

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