Break up the overnight rice with your hands or a spoon, making sure there are no large clumps.
Prepare the Prik Nam Pla by combining the chopped chilies and fish sauce in a small saucer. Set aside.
Heat a wok over high heat. Once hot, add 2 tablespoons of oil. Add the garlic and stir-fry until light brown and aromatic.
Add the rice and toss with a spatula. Add the light soy sauce and fish sauce, and continue stirring until well combined.
Push the rice to one side of the wok. Add the remaining ½ tablespoon of oil, then pour in the beaten eggs. Let the eggs cook and set for about 1 minute.
Use the spatula to fold the rice over the eggs. Let it cook for about 1 minute.
Continue stirring, breaking the eggs into smaller pieces and mixing them evenly throughout the rice.
Add the crab meat, white pepper, and scallions. Stir well until everything is evenly combined and the crab is heated through.
Dish out the fried rice and garnish with cilantro leaves. Serve with lime wedges, tomato wedges, and sliced chilies in fish sauce.