What is the correct syntax to retrieve a variable from a URL in PHP?

To retrieve a variable from a URL in PHP, you can use the $_GET superglobal array. This array contains key-value pairs of variables passed in the URL. To access a specific variable, you can use $_GET['variable_name']. Make sure to sanitize and validate the input to prevent security vulnerabilities. 

// Retrieve a variable named 'id' from the URL
$id = $_GET['id'];

// Sanitize and validate the input
$id = filter_var($id, FILTER_SANITIZE_NUMBER_INT);

// Use the variable in your code
echo "The ID retrieved from the URL is: " . $id;

Keywords

PHP syntax retrieve variable URL

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