Foreach$文件创建帖子如何操作

我知道这可能非常简单，我忽略了这里的一些东西。

我在我们网站的前端有一个表单，用户可以通过表单上传图像，然后在我们的店铺中创建产品。

目前，上传一幅图像时一切正常，当用户上传多幅图像时，我该如何做到这一点？

以我改变的形式<input type="file" name="thumbnail" id="thumbnail" /> 到<input type="file" name="thumbnail" id="thumbnail" multiple />我想用这样的东西包装下面的内容会有用：

if ($_FILES) {
  foreach ($_FILES as $file => $array) {
    // do necessary code
  }
}

但事实并非如此。

这是我创建这篇文章的资料。我不知道为什么将其包装在foreach$文件中不起作用？

$current_user = wp_get_current_user();

if(isset($_POST[\'submitted\']) && isset($_POST[\'post_nonce_field\']) && wp_verify_nonce($_POST[\'post_nonce_field\'], \'post_nonce\')) {


        $postTitle = trim($_POST[\'postTitle\']);


    if($post_id)
    {
        wp_redirect(home_url());
        exit;
    }

    //random sku
$skuu = rand();

$new_post = array(
\'post_title\' => $skuu,
\'post_content\' => \'\', //add anything here like link to vendor or whatever
\'post_status\' => \'publish\',
\'post_type\' => \'product\'
);


//insert and update post
$post_id = wp_insert_post($new_post);
update_post_meta($post_id, \'_sku\', $skuu );

if ($_FILES) {
  foreach ($_FILES as $file => $array) {
    $newupload = insert_attachment($file,$post_id);
  }
}

//find available attributes
$avail_attributes = Array(
    \'high-resolution\',
    \'medium-resolution\',
    \'low-resolution\'
);

//set terms (variations and attributes)
wp_set_object_terms ($post_id, \'variable\', \'product_type\');
wp_set_object_terms( $post_id, $avail_attributes, \'pa_resolution\' );


//Categories
wp_set_object_terms( $post_id, array(esc_attr(strip_tags($_POST[\'postCat\'])), esc_attr(strip_tags($_POST[\'raceCat\']))), \'product_cat\' );

// set variable data
$thedata = Array(\'pa_resolution\'=>Array(
\'name\'=>\'pa_resolution\',
\'value\'=>\'\',
\'is_visible\' => \'1\',
\'is_variation\' => \'1\',
\'is_taxonomy\' => \'1\'
));

update_post_meta( $post_id,\'_product_attributes\',$thedata);
update_post_meta( $post_id, \'_visibility\', \'visible\' );
update_post_meta( $post_id, \'_stock_status\', \'instock\');
//update_post_meta( $post_id, \'_product_vendors_commission\', \'25\');

//insert variations post_type
$i=1;
while ($i<=3) {
$my_post = array(
      \'post_title\'    => \'Variation #\' . $i . \' of \' . esc_attr(strip_tags($_POST[\'postTitle\'])),
      \'post_name\'     => \'product-\' . $post_id . \'-variation-\' . $i,
      \'post_status\'   => \'publish\',
      \'post_parent\'   => $post_id,
      \'post_type\'     => \'product_variation\',
      \'guid\'          =>  home_url() . \'/?product_variation=product-\' . $post_id . \'-variation-\' . $i,
      \'post_author\'   => $vendor_data->term_id
    );

    // Insert the post into the database
    wp_insert_post( $my_post );

    $variable_id = $post_id + 2;
    $variable_two = $variable_id + 1;
    $variable_three = $variable_two + 1;

    //get user prices
    global $current_user;
    $low_price = get_user_meta($current_user->ID, \'_low_price\', true);
    $medium_price = get_user_meta($current_user->ID, \'_medium_price\', true);
    $high_price = get_user_meta($current_user->ID, \'_high_price\', true);

    //downloadable file paths
    $download_id = get_post_thumbnail_id( $post_id );
    $lowRes_src  = wp_get_attachment_image_src( $download_id, \'low-resolution\' );
    $medRes_src  = wp_get_attachment_image_src( $download_id, \'medium-resolution\' );
    $highRes_src  = wp_get_attachment_image_src( $download_id, \'high-resolution\' );

    $low_downloadable_images = array();
    $medium_downloadable_images = array();
    $high_downloadable_images = array();

    foreach ($lowRes_src as $lowRes_url) {
        $lowRes_url = $lowRes_src[0];
        $low_downloadable_images[md5( $lowRes_url )] = $lowRes_url;
    }

    foreach ($medRes_src as $medRes_url) {
        $medRes_url = $medRes_src[0];
        $medium_downloadable_images[md5( $medRes_url )] = $medRes_url;
    }

    foreach ($highRes_src as $highRes_url) {
        $highRes_url = $highRes_src[0];
        $high_downloadable_images[md5( $highRes_url )] = $highRes_url;
    }

    //echo $rand;

    update_post_meta( $variable_id, \'attribute_pa_resolution\', \'high-resolution\');
    update_post_meta( $variable_id, \'_price\', $high_price );
    update_post_meta( $variable_id, \'_regular_price\', $high_price);
    update_post_meta( $variable_id, \'_virtual\', \'yes\');
    update_post_meta( $variable_id, \'_downloadable\', \'yes\');
    update_post_meta( $variable_id, \'_file_paths\', $high_downloadable_images);

    update_post_meta( $variable_two, \'attribute_pa_resolution\', \'medium-resolution\');
    update_post_meta( $variable_two, \'_price\', $medium_price );
    update_post_meta( $variable_two, \'_regular_price\', $medium_price);
    update_post_meta( $variable_two, \'_virtual\', \'yes\');
    update_post_meta( $variable_two, \'_downloadable\', \'yes\');
    update_post_meta( $variable_two, \'_file_paths\', $medium_downloadable_images);

    update_post_meta( $variable_three, \'attribute_pa_resolution\', \'low-resolution\');
    update_post_meta( $variable_three, \'_price\', $low_price );
    update_post_meta( $variable_three, \'_regular_price\', $low_price);
    update_post_meta( $variable_three, \'_virtual\', \'yes\');
    update_post_meta( $variable_three, \'_downloadable\', \'yes\');
    update_post_meta( $variable_three, \'_file_paths\', $low_downloadable_images);

    $i++;
    }


}

//attach vendor to product
$vendor = get_user_vendor();
if( isset( $vendor->slug ) && strlen( $vendor->slug ) > 0 ) {
    wp_set_object_terms( $post_id, $vendor->slug, \'shop_vendor\', false );
}

简而言之，我只需要一种方法，让上面的代码为每个上传的文件创建帖子，而不是像现在这样只上传一个文件。。我没有主意了

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