'create', 'patient_id' => 2, 'doctor_id' => 1, 'nurse_id' => null, 'visit_type' => 'Clinic', 'address' => '', 'start_time' => '2026-03-25T10:00', 'reason' => 'Test API' ]; $ch = curl_init('http://localhost/api/appointments.php'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data)); curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']); $response = curl_exec($ch); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); if ($response === false) { echo "Curl Error: " . curl_error($ch); } else { echo "HTTP Code: $http_code\n"; echo "Response: $response\n"; } curl_close($ch);