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尝试将新脚本与我现有的主页集成，我需要在我的 index.php 中包含 2 个新的 php 文件。我喜欢玩网络开发，但遗憾的是我的编码知识非常有限。（CMS 和 GUI 让人类变得愚蠢）

if ($page == 'Premium') {
    include('affiliates/controller/affiliate-tracking.php');

    if (isset($_GET['payment']) && $_GET['payment'] == 'created') {
        $sale_amount = '5.00';
        $product = 'Premium';

        include('affiliates/controller/record-sale.php');

    }
}

如果我这样做，我会收到致命错误：在第 61 行的affiliates/controller/record-sale.php 中的非对象上调用成员函数 fetch_assoc()。

第 61 行的代码是这样的：

$stmt->execute();

有人可以在这里指出我正确的方向吗？我不确定这个错误是什么意思。似乎没有任何数据库错误，所有其他功能都按预期方式工作。

感谢任何回答的撒玛利亚人。

使用 mysqli 的 record-sale.php 完整代码是这样的：

application/x-httpd-php record-sale.php ( PHP script text )

<?php
$path = dirname(__FILE__);
$path = substr($path, 0, -10);
include($path.'/auth/db-connect.php');
$ap_tracking = 'ap_ref_tracking';
$datetime = date("Y-m-d H:i:s");

//IF AFFILIATE ID IS PRESENT
if(isset($_COOKIE[$ap_tracking])){
    session_start();

    //GET COMMISSION LEVEL
    $get_dc = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT default_commission FROM ap_settings WHERE id=1"));
    $default_commission = $get_dc['default_commission'];

    //IS SALE VOLUME COMMISSIONS ON
    $get_sv = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT sv_on FROM ap_other_commissions WHERE id=1"));
    $sv_on = $get_sv['sv_on'];

    if($sv_on=='1'){
    $get_cl = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT percentage FROM ap_commission_settings WHERE $sale_amount BETWEEN sales_from AND sales_to"));
    $comission = $get_cl['percentage'];
    }

    //COMMISSION OVERRIDE
    $comission = $commission;

    //SET DEFAULT COMMISSION IF NO OTHER VALUE HAS BEEN SET
    if($comission==''){$comission = $default_commission;}

    //RECURRING COMMISSIONS
    if(isset($recurring)){
        $recurring_period = strtolower($recurring);
        $recurring_amount = $recurring_fee;
        if($recurring_period==''){$recurring_period='monthly';}
        if($recurring_fee==''){$recurring_fee = $default_commission;}
    }else{
        $recurring_period = 'Non-recurring';
        $recurring_fee = '0';
    }

    //RECORD SALE
    $affiliate_id = $_COOKIE[$ap_tracking];
    $percentage = $comission / 100;
    $net_earnings = $sale_amount * $percentage;
    $datetime = date("Y-m-d H:i:s");

    //CHECK FOR VALID AFFILIATE
    $get_affiliate = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT balance FROM ap_members WHERE id=$affiliate_id"));
    $affiliate_balance = $get_affiliate['balance'];

    if(isset($affiliate_balance)){
        //PREVENT DUPLICATE SALES
        if($_SESSION['ap_sale_hit']=='1' && $affiliate_id == $_SESSION['saved_affiliate'] && $net_earnings == $_SESSION['saved_net']){}else{
        $stmt = $mysqli->prepare("INSERT INTO ap_earnings (affiliate_id, product, comission, sale_amount, net_earnings, recurring, recurring_fee, datetime) VALUES (?, ?, ?, ?, ?, ?, ?, ?)");
        $stmt->bind_param('ssssssss', $affiliate_id, $product, $comission, $sale_amount, $net_earnings, $recurring_period, $recurring_fee, $datetime);
        $stmt->execute();
        $transaction_id = $stmt->insert_id;
        $stmt->close();
        //UPDATE AFFILIATE BALANCE
        $updated_balance = $affiliate_balance + $net_earnings;
        $update_one = $mysqli->prepare("UPDATE ap_members SET balance = ? WHERE id=$affiliate_id"); 
        $update_one->bind_param('s', $updated_balance);
        $update_one->execute();
        $update_one->close();   

        }
    }

    //MULT-TIER COMMISSIONS
    $get_mt = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT mt_on FROM ap_other_commissions WHERE id=1"));
    $mt_on = $get_mt['mt_on'];
    if($mt_on=='1'){
        $levels = 10;
        //FOR EACH LEVEL RUN
        $get_sponsor = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT sponsor FROM ap_members WHERE id=$affiliate_id"));
        $sponsor = $get_sponsor['sponsor'];
        for ($loop = 2 ; $loop < $levels; $loop++){ 

            //CHECK FOR AVAILABLE SPONSOR
            if($sponsor!='0'){

                //GET LEVEL PERCENTAGE
                $gp = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT * FROM ap_other_commissions WHERE id=1"));
                $p = $gp['tier'.$loop.'']; 
                $sc = $p / 100;
                $se = $sale_amount * $sc;

                //GET SPONSOR BALANCE
                $gb = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT balance FROM ap_members WHERE id=$sponsor"));
                $ob = $gb['balance']; 
                $nb = $ob + $se;
                $update_one = $mysqli->prepare("UPDATE ap_members SET balance = ? WHERE id=$sponsor"); 
                $update_one->bind_param('s', $nb);
                $update_one->execute();
                $update_one->close();

                    //INSERT TRANSACTION HISTORY
                    $stmt = $mysqli->prepare("INSERT INTO ap_multi_tier_transactions (affiliate_id, transaction_id, tier, commission, mt_earnings, datetime) VALUES (?, ?, ?, ?, ?, ?)");
                    $stmt->bind_param('ssssss', $sponsor, $transaction_id, $loop, $p, $se, $datetime);
                    $stmt->execute();
                    $stmt->close();
            }else{
                break 1;
            }
            //GET NEXT SPONSOR FOR NEXT LOOP
            $gs = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT sponsor FROM ap_members WHERE id=$sponsor"));
            $sponsor = $gs['sponsor'];
        }
    }

    $_SESSION['ap_sale_hit'] = '1';
    $_SESSION['saved_affiliate'] = $affiliate_id;
    $_SESSION['saved_net'] = $net_earnings;

}

if(isset($_POST['reset'])){
unset($_SESSION['ap_sale_hit']);
unset($_SESSION['saved_affiliate']);
unset($_SESSION['saved_net']);
//header("Refresh:0");
}
?>
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