plugins - Custom form data not displaying in cart page?

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i create a custom form at a custom template file domain.php where i put three input hidden fields showing you that form :

<?php
/* Template Name: domain-checker */
 echo get_header();
 $_product = wc_get_product( $_GET['addtocart'] );

 // session_start();
 // print_r($_SESSION);
    // die;
?>

<div class="container">
    <div class="row">
        <div class="col-md-2"> </div>
         <div class="col-md-8">
            <form action="<?php echo esc_url( admin_url('admin-post.php') ); ?>" method="POST">
                I will use my existing domain and update my nameservers www:<input type="text" class="form-control" name="damain_name" id="damain_name">

                <input type="hidden" name="product_name" value="<?php echo $_product->name; ?>" id="product_name">
                <input type="hidden" name="product_id" value="<?php echo $_GET['addtocart']; ?>" id="product_id">
                <input type="hidden" name="product_price" value="<?php echo $_product->price; ?>" id="product_price">
                <input type="hidden" name="action" value="contact_form">
                <input type="submit" name="submit" class="form-control btn-primary" value="SUBMIT">
            </form>
        </div>
        <div class="col-md-2"> </div>
        </div>
    </div>

and while this is the code what i am written in functions.php file:

/*===========================ADDING CUSTOM DATA====================*/
add_action( 'admin_post_nopriv_contact_form', 'prefix_send_email_to_admin' );
function prefix_send_email_to_admin() {

    //Custom data 
    $product_id = $_POST['product_id']; //This is product ID
    $damain_name =  $_POST['damain_name']; //This is User custom value sent via AJAX
    $action = $_POST['action'];
    $product_name = $_POST['product_name'];
    $product_price = $_POST['product_price'];
    $submit = $_POST['submit'];
    session_start();
    $_SESSION['product_id'] = $product_id;
    $_SESSION['damain_name'] = $damain_name;
    $_SESSION['action'] = $action;
    $_SESSION['product_name'] = $product_name;
    $_SESSION['product_price'] = $product_price;
    $_SESSION['submit'] = $submit;
    die();
    //session_destroy();

}
add_action('init', 'dump_woocommerce_cart');
function dump_woocommerce_cart() {
    global $woocommerce;
    var_dump(WC()->cart->get_cart());
     // session_start();
    // echo "this is session data";
    //print_r($woocommerce->cart->get_cart());
    // session_destroy();
}

// step 2==================================We are adding item in WooCommerce session with, wdm_user_custom_data_value name=============== //
add_filter('woocommerce_add_cart_item_data','wdm_add_item_data',1,2);
if(!function_exists('wdm_add_item_data'))
{
    function wdm_add_item_data($cart_item_data,$product_id)
    {

        global $woocommerce;
        session_start();
        $data = array();
        if (isset($_SESSION['product_id'])) {
            $option1 = $_SESSION['product_id'];
            $cart_item_data['product_id'] =  $option1;
        }
        if (isset($_SESSION['damain_name'])) {
            $option2 = $_SESSION['damain_name'];
            $cart_item_data['damain_name'] =  $option2;
        }
        if (isset($_SESSION['action'])) {
            $option3 = $_SESSION['action'];
            $cart_item_data['action'] =  $option3;
        }
        if (isset($_SESSION['product_name'])) {
            $option4 = $_SESSION['product_name'];
            $cart_item_data['product_name'] =  $option4;
        }
        if (isset($_SESSION['product_price'])) {
            $option5 = $_SESSION['product_price'];
            $cart_item_data['product_price'] =  $option5;
        }

                    return $cart_item_data ;
                    unset($_SESSION['product_id']);
                    unset($_SESSION['damain_name']);
                    unset($_SESSION['action']);
                    unset($_SESSION['product_name']);
                    unset($_SESSION['product_price']);

        }




        //Unset our custom session variable, as it is no longer needed.


}

// step 3==========Add the custom data to WooCommerce cart object=====/
add_filter('woocommerce_get_cart_item_from_session', 'wdm_get_cart_items_from_session', 1, 3 );
if(!function_exists('wdm_get_cart_items_from_session'))
{
    function wdm_get_cart_items_from_session($item,$values,$key)
    {


        if (array_key_exists( 'product_id', $values ) )
        {
            $item['product_id'] = $values['product_id'];
        }
        if (array_key_exists( 'damain_name', $values ) )
        {
            $item['damain_name'] = $values['damain_name'];
        }
        if (array_key_exists( 'action', $values ) )
        {
            $item['action'] = $values['action'];
        }
        if (array_key_exists( 'product_name', $values ) )
        {
            $item['product_name'] = $values['product_name'];
        }
        if (array_key_exists( 'product_price', $values ) )
        {
            $item['product_price'] = $values['product_price'];
        }
        return $item;

    }
}

i want to print_r my custom data at cart page so that i can ensure that the custom data is in woocommerce session at cart page .. your any help to be helpful for me..

本文标签： pluginsCustom form data not displaying in cart page