Wordpress 在电子商务中动态改变产品价格

我试图在woocommerce中动态地将自定义费用添加到产品价格中。我以前做过很多次，但现在不行了。这是我的密码

    function calculate_eyehole_fee( $cart_object ) {  
    global $isProcessed;
    if( !WC()->session->__isset( "reload_checkout" )) {

        $eyeHoleFee = 30.00;
        $ribbonFee = 20.00;

        // Get exchange rate details and defined fees
        $strCurrencyCode = get_woocommerce_currency();
        $arrExchangeRates = get_option('wc_aelia_currency_switcher');
        $fltExchangeRate = $arrExchangeRates['exchange_rates'][$strCurrencyCode]['rate'];

        $eveHoleCurrFee = $eyeHoleFee * $fltExchangeRate;
        $ribbonCurrFee = $ribbonFee * $fltExchangeRate;

        foreach ( $cart_object->cart_contents as $key => $value ) {

            $additionCost = 0.0;
            if( isset( $value["eyeHoleReq"] ) && $value["eyeHoleReq"] == 'yes' ) {
                $fltEyeFee = $eveHoleCurrFee;
                $additionCost = $fltEyeFee;
            } 
            if( isset( $value["eyeRibbon"] ) && $value["eyeRibbon"] == 'yes' ) {
                $fltRibbonFee = $ribbonCurrFee;
                $additionCost += $fltRibbonFee;
            }
            $cart_object->cart_contents[$key]['data']->price += $additionCost;
        } 
        $isProcessed = true;  
    }
    print('<pre>');print_r($cart_object);print('</pre>');
}

add_action( 'woocommerce_before_calculate_totals', 'calculate_eyehole_fee', 99 );

函数计算眼孔费用（$cart\u对象）{
全球$i已处理；
如果（！WC（）->会话->\u设置（“重新加载\u签出”））{
$eyeHoleFee=30.00；
$ribbonFee=20.00；
//获取汇率详细信息和定义的费用
$strCurrencyCode=get_woocommerce_currency（）；
$arrExchangeRates=get_选项（'wc_aelia_currency_switcher'）；
$fltexchangererate=$arrexchangererates['exchangererates'][$strCurrencyCode]['rate']；
$eveholecurfee=$eyeHoleFee*$fltExchangeRate；
$ribbonCurrFee=$ribbonFee*$fltExchangeRate；
foreach（$cart\u object->cart\u内容为$key=>$value）{
$additionCost=0.0；
如果（isset（$value[“eyeHoleReq”]）和&$value[“eyeHoleReq”]=='yes'）{
$fltEyeFee=$eveholecurfee；
$additionCost=$fltEyeFee；
} 
如果（isset（$value[“eyebribbon”]）&&$value[“eyebribbon”]==“是”）{
$fltRibbonFee=$ribbonCurrFee；
$additionCost+=$fltRibbonFee；
}
$cart\u object->cart\u contents[$key]['data']->price+=$additionCost；
} 
$isProcessed=true；
}
打印（“”）；打印（$cart\u对象）；打印（“”）；
}
添加行动（“计算总数之前的商业活动”、“计算眼孔费用”，99）；

---

我的价格在购物车对象中更新，但它不反映在哪里。因此，总数也计算错误。

在woocommerce 3.0更新后，我们无法直接设定价格。相反，我们必须使用set_price（）方法。因此，应采取以下措施：

函数计算眼孔费用（$cart\u对象）{
全球$i已处理；
如果（！WC（）->会话->\u设置（“重新加载\u签出”））{
$eyeHoleFee=30.00；
$ribbonFee=20.00；
//获取汇率详细信息和定义的费用
$strCurrencyCode=get_woocommerce_currency（）；
$arrExchangeRates=get_选项（'wc_aelia_currency_switcher'）；
$fltexchangererate=$arrexchangererates['exchangererates'][$strCurrencyCode]['rate']；
$eveholecurfee=$eyeHoleFee*$fltExchangeRate；
$ribbonCurrFee=$ribbonFee*$fltExchangeRate；
foreach（$cart\u object->get\u cart（）作为$key=>$value）{
$additionCost=0.0；
如果（isset（$value[“eyeHoleReq”]）和&$value[“eyeHoleReq”]=='yes'）{
$fltEyeFee=$eveholecurfee；
$additionCost=$fltEyeFee；
} 
如果（isset（$value[“eyebribbon”]）&&$value[“eyebribbon”]==“是”）{
$fltRibbonFee=$ribbonCurrFee；
$additionCost+=$fltRibbonFee；
}
$defPrice=$value['data']->get_price（'edit'）；
$value['data']->设置价格（（浮动）$defPrice+$additionCost）；
} 
$isProcessed=true；
}
打印（“”）；打印（$cart\u对象）；打印（“”）；
}
添加行动（“计算总数之前的商业活动”、“计算眼孔费用”，99）；

function calculate_eyehole_fee( $cart_object ) {  
    global $isProcessed;
    if( !WC()->session->__isset( "reload_checkout" )) {

        $eyeHoleFee = 30.00;
        $ribbonFee = 20.00;

        // Get exchange rate details and defined fees
        $strCurrencyCode = get_woocommerce_currency();
        $arrExchangeRates = get_option('wc_aelia_currency_switcher');
        $fltExchangeRate = $arrExchangeRates['exchange_rates'][$strCurrencyCode]['rate'];

        $eveHoleCurrFee = $eyeHoleFee * $fltExchangeRate;
        $ribbonCurrFee = $ribbonFee * $fltExchangeRate;

        foreach ( $cart_object->get_cart() as $key => $value ) {

            $additionCost = 0.0;
            if( isset( $value["eyeHoleReq"] ) && $value["eyeHoleReq"] == 'yes' ) {
                $fltEyeFee = $eveHoleCurrFee;
                $additionCost = $fltEyeFee;
            } 
            if( isset( $value["eyeRibbon"] ) && $value["eyeRibbon"] == 'yes' ) {
                $fltRibbonFee = $ribbonCurrFee;
                $additionCost += $fltRibbonFee;
            }
            $defPrice = $value['data']->get_price('edit');
            $value['data']->set_price((float) $defPrice + $additionCost);
        } 
        $isProcessed = true;  
    }
    print('<pre>');print_r($cart_object);print('</pre>');
}

add_action( 'woocommerce_before_calculate_totals', 'calculate_eyehole_fee', 99 );