The company looks like it's still in the early innings of its turnaround.Shares of PayPal (PYPL -5.10%) were climbing higher after the company reported strong second-quarter results and raised its full-year guidance. Even with the jump in price, the stock is still down more than 20% over the past year.Let's look at the payment company's most recent results, long-term prospects, valuation, and whether or not it's too late to buy the stock.Strong results and increased guidanceFor the second time this year, Pa ...