What are some alternative approaches or methods that can be used to test and analyze stock market strategies in PHP?

Issue: One alternative method to test and analyze stock market strategies in PHP is to use backtesting. Backtesting involves testing a trading strategy on historical data to see how it would have performed in the past. This allows traders to evaluate the effectiveness of their strategies before risking real money in the market. PHP Code Snippet: 

// Define historical stock data
$historicalData = [
    ['date' => '2021-01-01', 'price' => 100],
    ['date' => '2021-01-02', 'price' => 105],
    ['date' => '2021-01-03', 'price' => 110],
    // Add more historical data here
];

// Define trading strategy function
function tradingStrategy($data) {
    // Implement your trading strategy logic here
    // Return buy/sell signals based on the data
}

// Backtest the trading strategy
foreach ($historicalData as $data) {
    $signal = tradingStrategy($data);
    // Implement backtesting logic here
}

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