What are some methods to retrieve query string parameters in PHP?

To retrieve query string parameters in PHP, you can use the $_GET superglobal array. This array contains key-value pairs of query string parameters passed in the URL. You can access these parameters by using the key as an index in the $_GET array. 

// Retrieve query string parameter named 'id'
$id = $_GET['id'];

// Check if the parameter exists before using it
if(isset($_GET['name'])) {
    $name = $_GET['name'];
    echo "Hello, $name!";
}

Keywords

PHP query string parameters $_GET parse_str parse_url

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