您可以尝试以下操作，将上传的图像数据存储为自定义购物车商品数据并将其保存为自定义订单商品元数据：
// Display additional product fields (+ jQuery code)
add_action( 'woocommerce_before_add_to_cart_button', 'display_additional_product_fields', 9 );
function display_additional_product_fields(){
?>
<p class="form-row validate-required" id="image" >
<label for="file_field"><?php echo __("Upload Image") . ': '; ?>
<input type='file' name='image' accept='image/*'>
</label>
</p>
<?php
}
// Add custom fields data as the cart item custom data
add_filter( 'woocommerce_add_cart_item_data', 'add_custom_fields_data_as_custom_cart_item_data', 10, 2 );
function add_custom_fields_data_as_custom_cart_item_data( $cart_item, $product_id ){
if( isset($_FILES['image']) && ! empty($_FILES['image']) ) {
$upload = wp_upload_bits( $_FILES['image']['name'], null, file_get_contents( $_FILES['image']['tmp_name'] ) );
$filetype = wp_check_filetype( basename( $upload['file'] ), null );
$upload_dir = wp_upload_dir();
$upl_base_url = is_ssl() ? str_replace('http://', 'https://', $upload_dir['baseurl']) : $upload_dir['baseurl'];
$base_name = basename( $upload['file'] );
$cart_item['file_upload'] = array(
'guid' => $upl_base_url .'/'. _wp_relative_upload_path( $upload['file'] ), // Url
'file_type' => $filetype['type'], // File type
'file_name' => $base_name, // File name
'title' => ucfirst( preg_replace('/\.[^.]+$/', '', $base_name ) ), // Title
);
$cart_item['unique_key'] = md5( microtime().rand() ); // Avoid merging items
}
return $cart_item;
}
// Display custom cart item data in cart (optional)
add_filter( 'woocommerce_get_item_data', 'display_custom_item_data', 10, 2 );
function display_custom_item_data( $cart_item_data, $cart_item ) {
if ( isset( $cart_item['file_upload']['title'] ) ){
$cart_item_data[] = array(
'name' => __( 'Image uploaded', 'woocommerce' ),
'value' => str_pad($cart_item['file_upload']['title'], 16, 'X', STR_PAD_LEFT) . '…',
);
}
return $cart_item_data;
}
// Save Image data as order item meta data
add_action( 'woocommerce_checkout_create_order_line_item', 'custom_field_update_order_item_meta', 20, 4 );
function custom_field_update_order_item_meta( $item, $cart_item_key, $values, $order ) {
if ( isset( $values['file_upload'] ) ){
$item->update_meta_data( '_img_file', $values['file_upload'] );
}
}
// Admin orders: Display a linked button + the link of the image file
add_action( 'woocommerce_after_order_itemmeta', 'backend_image_link_after_order_itemmeta', 10, 3 );
function backend_image_link_after_order_itemmeta( $item_id, $item, $product ) {
// Only in backend for order line items (avoiding errors)
if( is_admin() && $item->is_type('line_item') && $file_data = $item->get_meta( '_img_file' ) ){
echo '<p><a href="'.$file_data['guid'].'" target="_blank" class="button">'.__("Open Image") . '</a></p>'; // Optional
echo '<p><code>'.$file_data['guid'].'</code></p>'; // Optional
}
}
// Admin new order email: Display a linked button + the link of the image file
add_action( 'woocommerce_email_after_order_table', 'wc_email_new_order_custom_meta_data', 10, 4);
function wc_email_new_order_custom_meta_data( $order, $sent_to_admin, $plain_text, $email ){
// On "new order" email notifications
if ( 'new_order' === $email->id ) {
foreach ($order->get_items() as $item ) {
if ( $file_data = $item->get_meta( '_img_file' ) ) {
echo '<p>
<a href="'.$file_data['guid'].'" target="_blank" class="button">'.__("Download Image") . '</a><br>
<pre><code style="font-size:12px; background-color:#eee; padding:5px;">'.$file_data['guid'].'</code></pre>
</p><br>';
}
}
}
}
此代码位于活动子主题（或活动主题）的 functions.php 文件中。
在 Woocommerce 版本 4.3.x 中测试并使用所有类型的默认 WooCommerce 产品。