如何在 echo 中添加 do_action？

Question

也許是一個瘋狂的問題，但我需要將下面的代碼放在 echo 中，但我收到了一個錯誤。 基本上我想隱藏未登錄用戶的添加到購物車部分並向他們顯示不同的內容/按鈕

整個代碼

<div class="woocommerce-variation-add-to-cart variations_button">
    <?php do_action( 'woocommerce_before_add_to_cart_button' ); ?>

    <?php
    do_action( 'woocommerce_before_add_to_cart_quantity' );

    woocommerce_quantity_input(
        array(
            'min_value'   => apply_filters( 'woocommerce_quantity_input_min', $product->get_min_purchase_quantity(), $product ),
            'max_value'   => apply_filters( 'woocommerce_quantity_input_max', $product->get_max_purchase_quantity(), $product ),
            'input_value' => isset( $_POST['quantity'] ) ? wc_stock_amount( wp_unslash( $_POST['quantity'] ) ) : $product->get_min_purchase_quantity(), // WPCS: CSRF ok, input var ok.
        )
    );

    do_action( 'woocommerce_after_add_to_cart_quantity' );
    ?>

    <button type="submit" class="single_add_to_cart_button button alt"><?php echo esc_html( $product->single_add_to_cart_text() ); ?></button>

    <?php do_action( 'woocommerce_after_add_to_cart_button' ); ?>

    <input type="hidden" name="add-to-cart" value="<?php echo absint( $product->get_id() ); ?>" />
    <input type="hidden" name="product_id" value="<?php echo absint( $product->get_id() ); ?>" />
    <input type="hidden" name="variation_id" class="variation_id" value="0" />
</div>

在這里

<?php
if ( is_user_logged_in() ) {
    echo 'THAT CODE SHOULD GO HERE';
} else {
    echo 'Welcome, visitor!';
}
?>

Answer 1

你可以做：

    <?php
    if ( is_user_logged_in() ) {
    ?>
       <div class="woocommerce-variation-add-to-cart variations_button">
        <?php do_action( 'woocommerce_before_add_to_cart_button' ); ?>

        <?php
        do_action( 'woocommerce_before_add_to_cart_quantity' );

        woocommerce_quantity_input(
            array(
                'min_value'   => apply_filters( 'woocommerce_quantity_input_min', $product->get_min_purchase_quantity(), $product ),
                'max_value'   => apply_filters( 'woocommerce_quantity_input_max', $product->get_max_purchase_quantity(), $product ),
                'input_value' => isset( $_POST['quantity'] ) ? wc_stock_amount( wp_unslash( $_POST['quantity'] ) ) : $product->get_min_purchase_quantity(), // WPCS: CSRF ok, input var ok.
            )
        );

        do_action( 'woocommerce_after_add_to_cart_quantity' );
        ?>

        <button type="submit" class="single_add_to_cart_button button alt"><?php echo esc_html( $product->single_add_to_cart_text() ); ?></button>

        <?php do_action( 'woocommerce_after_add_to_cart_button' ); ?>

        <input type="hidden" name="add-to-cart" value="<?php echo absint( $product->get_id() ); ?>" />
        <input type="hidden" name="product_id" value="<?php echo absint( $product->get_id() ); ?>" />
        <input type="hidden" name="variation_id" class="variation_id" value="0" />
    </div>

<?php

    } else {
        echo 'Welcome, visitor!';
    }
?>

Answer 2

拜托，你應該能夠自己做到這一點。 但這里是：

<?php
if(is_user_logged_in()){
    echo "<div class='woocommerce-variation-add-to-cart variations_button'>";
    do_action( 'woocommerce_before_add_to_cart_button' );
    do_action( 'woocommerce_before_add_to_cart_quantity' );
    woocommerce_quantity_input(
        array(
            'min_value'   => apply_filters( 'woocommerce_quantity_input_min', $product->get_min_purchase_quantity(), $product ),
            'max_value'   => apply_filters( 'woocommerce_quantity_input_max', $product->get_max_purchase_quantity(), $product ),
            'input_value' => isset( $_POST['quantity'] ) ? wc_stock_amount( wp_unslash( $_POST['quantity'] ) ) : $product->get_min_purchase_quantity(), // WPCS: CSRF ok, input var ok.
        )
    );
    do_action( 'woocommerce_after_add_to_cart_quantity' );
    echo "<button type='submit' class='single_add_to_cart_button button alt'>".echo esc_html( $product->single_add_to_cart_text() );."</button>";
    do_action( 'woocommerce_after_add_to_cart_button' );
    echo "<input type='hidden' name='add-to-cart' value='".echo absint( $product->get_id() );."' />
    <input type='hidden' name='product_id' value='".echo absint( $product->get_id() );."' />
    <input type='hidden' name='variation_id' class='variation_id' value='0' />
    </div>
    }";
} else {
    echo 'Welcome, visitor!';
}
?>

盡管喬納森的另一個答案更好。