【发布时间】：2019-01-16 22:57:06
【问题描述】：
需要帮助：我正在尝试创建一个表单，在遵循此问题 (Add Woocommerce Temporary product) 后从前端发布 wooCommerce 产品。我现在面临的问题是每次我提交表单时都会收到此错误（如果我不验证表单）Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\WOOstores\wp-includes\class.wp-styles.php:225) in C:\xampp\htdocs\WOOstores\wp-includes\pluggable.php on line 1219。我真的很想在提交之前验证表单，我一直在尝试抛出与WP_Error() 相关的错误，这是我尝试验证表单字段时遇到的错误；
Warning: A non-numeric value encountered in C:\xampp\htdocs\WOOstores\wp-content\themes\adrianstores\woocommerce\myaccount\custom-orders.php on line 73 // Will indicate this line in my below code
Notice: Object of class WP_Error could not be converted to int in C:\xampp\htdocs\WOOstores\wp-includes\taxonomy.php on line 2297
Notice: Object of class WP_Error could not be converted to int in C:\xampp\htdocs\WOOstores\wp-includes\taxonomy.php on line 2297
Notice: Object of class WP_Error could not be converted to int in C:\xampp\htdocs\WOOstores\wp-includes\functions.php on line 3843
产品的创建没有问题，它应该如何工作（如果我不验证该字段），但我真的想验证表单，但我在这样做时遇到了问题。以下是完整代码
<form method="post" action="">
<div class="form-group">
<div class="co-message"></div> <!--I want the validation message to show up here. Error & Success Validation-->
<label for="co_currency"><?php _e('Select Currency', 'text-domain'); ?></label>
<select class="form-control" id="co_currency" name="co_currency">
<option value="USD">USD</option>
<option value="RMB">RMB</option>
</select>
</div>
<div id="is_amazon" class="form-group is_amazon">
<label class="disInBlk" for="co_isAmazon"><?php _e('Is this an Amazon Product?','text-domain').':'; ?></label>
<input type="checkbox" name="co_isAmazon" id="co-isAmazon">
</div>
<div class="form-group">
<label for="co_productTitle"><?php _e('Product Name/Title','text-domain').':'; ?></label>
<input type="text" name="co_productTitle" class="form-control" id="co-productTitle" value="">
</div>
<div class="form-group">
<label for="co_productLink"><?php _e('Product Link','text-domain').':'; ?></label>
<input type="url" name="co_productLink" class="form-control" id="co-productLink" value="" placeholder="<?php _e('http://...', 'text-domain'); ?>">
</div>
<div class="form-group">
<label for="co_productPriceUSD"><?php _e('Product Price (USD)','text-domain').':'; ?></label>
<input type="number" name="co_productPriceUSD" class="form-control" id="co-productPriceUSD" value="0" step="0.01">
</div>
<div class="form-group">
<label for="co_productPriceNGN"><?php _e('Price Converted to NGN','text-domain').':'; ?></label>
<input type="number" name="co_productPriceNGN" class="form-control" id="co-productPriceNGN" value="0" readonly>
</div>
<div class="form-group">
<label for="co_productWeightKG"><?php _e('Weight (in KG)','text-domain').':'; ?></label>
<input type="number" name="co_productWeightKG" class="form-control" id="co-productWeightKG" value="" step="0.01">
</div>
<div class="form-group-btn">
<input type="submit" name="co_submit" class="form-control" id="co-submit" value="<?php echo _e('Place Your Order', 'text-domain'); ?>">
<input type="hidden" name="amountNGNUpdated" value="<?php echo $ExhangeRateUSD; ?>" id="CurrencyEX">
<input type="hidden" name="productCategoryUpdate" value="<?php echo $product_CO_terms; ?>">
</div>
</form>
与 HTML 表单位于同一页面的 PHP 代码
function get_product_category_by_id( $category_id ) {
$term = get_term_by( 'id', $category_id, 'product_cat', 'ARRAY_A' );
return $term['name'];
}
$product_CO_terms = get_product_category_by_id( 15 );
$ProductTitle = $ProductURL = $ProductPriceValue = $ProductWeight = $ExchangeRate = "";
$errorpTitle = $errorpUrl= $errorpPrice = $errorpWeight = "";
if ( 'POST' == $_SERVER['REQUEST_METHOD'] ) {
$ExchangeRate = test_input($_POST['amountNGNUpdated']);
$ProductCategory = test_input($_POST['productCategoryUpdate']);
$ProductTitle = test_input($_POST['co_productTitle']);
$ProductURL = test_input($_POST['co_productLink']);
$ProductPriceValue = test_input($_POST['co_productPriceUSD']);
$ProductWeight = test_input($_POST['co_productWeightKG']);
/* THIS IS THE VALIDATION I DID, Which i dont know why it giving me the WP_Error() error
if ( empty($ProductTitle) ) {
$errorpTitle = __('Product Title is required. e.g. iPhone XS Max 16GB Silver', 'text-domain');
} else {
$ProductTitle = test_input($_POST['co_productTitle']);
}
if ( empty($ProductURL) ) {
$errorpUrl = __('Product URL is required. e.g. http://amazon.com/.../', 'text-domain');
} else {
$ProductURL = test_input($_POST['co_productLink']);
}
if ( empty($ProductPriceValue) || $ProductPriceValue == 0 ) {
$errorpPrice = __('Product Price is required.', 'text-domain');
} else {
$ProductPriceValue = test_input($_POST['co_productPriceUSD']);
}
if ( empty($ProductWeight) ) {
$errorpWeight = __('Product Weight is required. Weight unit should be in KG. You can use the Weight converter to convert your weight from lbs to kg.', 'text-domain');
} else {
$ProductWeight = test_input($_POST['co_productWeightKG']);
}*/
$NewProductPrice = $ProductPriceValue * $ExchangeRate; //This is the line 73 in which i was getting "A non-numeric value encountered"
//add them in an array
$post = array(
'post_status' => "publish",
'post_title' => $ProductTitle,
'post_type' => "product",
);
//create product for product ID
$product_id = wp_insert_post( $post, __('Cannot create product', 'izzycart-function-code') );
//type of product
wp_set_object_terms($product_id, 'simple', 'product_type');
//Which Category
wp_set_object_terms( $product_id, $product_CO_terms, 'product_cat' );
//add product meta
update_post_meta( $product_id, '_regular_price', $NewProductPrice );
update_post_meta( $product_id, '_price', $NewProductPrice );
update_post_meta( $product_id, '_weight', $ProductWeight );
update_post_meta( $product_id, '_store_product_uri', $ProductURL );
update_post_meta( $product_id, '_visibility', 'visible' );
update_post_meta( $product_id, '_stock_status', 'instock' );
//Add product to Cart
return WC()->cart->add_to_cart( $product_id );
我想用上面的行return WC()->cart->add_to_cart( $product_id ); 实现的是将产品添加到购物车并重定向到购物车。 （使用 return 给我一个空白页，但添加要获取的产品，这使得该行不是最佳方法）
我需要帮助；
1.如何使表单验证字段。如果任何字段为空，则应在表单顶部抛出错误消息。我们有<div class="co-message"></div>，如果所有字段都通过了验证，它应该会抛出一条成功消息并继续创建产品。
2.创建产品后，将产品添加到购物车并重定向到购物车。
谢谢
【问题讨论】：
标签： wordpress forms validation woocommerce