FDF迴圈互助智慧合約系統DAPP開發技術方案

以下是一個簡單的 FDF 迴圈互助智慧合約的 PHP 程式碼示例：

php

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<?php

// FDF迴圈互助智慧合約

// 定義 FDF 迴圈互助合約

class FDFContract {

    

    private $totalInvestment;

    private $totalWithdrawal;

    private $currentRound;

    private $rounds;

    // 初始化 FDF 合約

    public function __construct() {

        $this->totalInvestment = 0;

        $this->totalWithdrawal = 0;

        $this->currentRound = 1;

        $this->rounds = array();

    }

    // 新增新一輪 FDF 迴圈互助計劃

    public function addRound($amount, $rate, $duration) {

        $this->rounds[] = array(

            "roundNumber" => $this->currentRound,

            "investmentAmount" => $amount,

            "investmentRate" => $rate,

            "investmentDuration" => $duration

        );

        $this->totalInvestment += $amount;

        $this->currentRound++;

    }

    // 獲取當前 FDF 迴圈互助計劃

    public function getCurrentRound() {

        return $this->rounds[count($this->rounds) - 1];

    }

    // 獲取 FDF 迴圈互助總投資額

    public function getTotalInvestment() {

        return $this->totalInvestment;

    }

    // 獲取 FDF 迴圈互助總提現額

    public function getTotalWithdrawal() {

        return $this->totalWithdrawal;

    }

    // 提現 FDF 迴圈互助收益

    public function withdraw($roundNumber) {

        $round = $this->getRound($roundNumber);

        $withdrawalAmount = $round["investmentAmount"] * $round["investmentRate"];

        $this->totalWithdrawal += $withdrawalAmount;

        return $withdrawalAmount;

    }

    // 獲取指定輪次的 FDF 迴圈互助計劃

    private function getRound($roundNumber) {

        foreach ($this->rounds as $round) {

            if ($round["roundNumber"] == $roundNumber) {

                return $round;

            }

        }

        return null;

    }

}

// 建立 FDF 迴圈互助智慧合約

$FDFContract = new FDFContract();

// 新增新一輪 FDF 迴圈互助計劃

$FDFContract->addRound(1000, 1.2, 30);

$FDFContract->addRound(2000, 1.3, 60);

// 獲取當前 FDF 迴圈互助計劃

$currentRound = $FDFContract->getCurrentRound();

echo "Current Round: " . $currentRound["roundNumber"] . "\n";

echo "Investment Amount: " . $currentRound["investmentAmount"] . "\n";

echo "Investment Rate: " . $currentRound["investmentRate"] . "\n";

echo "Investment Duration: " . $currentRound["investmentDuration"] . "\n";

// 提現 FDF 迴圈互助收益

$withdrawalAmount = $FDFContract->withdraw(1);

echo "Withdrawal Amount: " . $withdrawalAmount . "\n";

// 獲取 FDF