// Assuming you have a database connection object $query = "SELECT * FROM users WHERE email = 'john@example.com'"; $result = $conn->query($query); $user = $result->fetch_assoc();
// Assuming you have a API key and endpoint $endpoint = 'https://api.example.com/users?email=john@example.com'; $headers = ['Authorization: Bearer ' . $api_key]; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $endpoint); curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch); $user = json_decode($result, true); curl_close($ch);In this example, we are making an HTTP request to a third-party service to retrieve a user with a specific email address. We pass our API key as an authorization header and parse the JSON response to obtain the user's information. Package library: cURL Both of these examples demonstrate how PHP can be used to retrieve user information from different sources. The specific package libraries used may vary depending on the requirements of the application.