How can PHP be used to extract parameters from a URL?

To extract parameters from a URL in PHP, you can use the `$_GET` superglobal array. This array contains key-value pairs of parameters passed in the URL query string. To access a specific parameter, you can use the parameter name as the key in the `$_GET` array. 

// Example URL: http://example.com/index.php?id=123&name=John

$id = $_GET['id']; // $id will contain '123'
$name = $_GET['name']; // $name will contain 'John'

echo "ID: " . $id . "<br>";
echo "Name: " . $name;

Keywords

PHP URL parameters extraction function

Related Questions