How to save metabox data with foreach

There are two images that I manually put in the database in the table wp_postmeta, with the value of the meta key: my-image-for-post, indicating Of course the id of the post:

I can print in the metabox those images that are already in the DB when editing the post. Like this:

$urlsDB =get_post_meta($post->ID,'my-image-for-post', false);

 foreach ($urlsDB as $url1) { 
 ?>

         <img src="<?php echo $url1;?>" style="width:200px;" />

 <?php
 };

But I am trying to save the many images that I select in the metabox when editing the post.

I can select images with wordpress image manager and with jquery fill in the urls and insert name='my_image_URL' into the input of each selected image:

$("#show").after("<input class='upload_image' type='text' size='36' name='my_image_URL' value= " +attachment.url+ " /></br><img src=" +attachment.url+" class='my_image' src='' width='80px'></br>");

Inside the <div id="show"> displays the selected images and the inputs are filled with the url of each image to be saved.

The meta box is working OK, but when I save the post the content changes, but it does not save the metabox images in DB, I tried the two ways below:

1

add_action( 'save_post', function ($post_id) {

    if (isset($_POST['my_image_URL'])){
            $urls = $_POST['my_image_URL'];

            Foreach ($urls as $url){
        $key1_values = get_post_custom_values( 'my-image-for-post', $post_id );
        Foreach($key1_values as $value){
            update_post_meta($post_id, 'my-image-for-post', $url, $value);
        }
        }
   }

});

2nd way I’ve tried

add_action( 'save_post', function ($post_id) {

        if (isset($_POST['my_image_URL'])){
        $urls = $_POST['my_image_URL'];

         Foreach ($urls as $url){
            update_post_meta($post_id, 'my-image-for-post',$url);
        }
    }

});

But do not save the urls in the wp_postmeta table, what can I be doing wrong?

Thanks

• This topic was modified 8 years, 1 month ago by Gisele.
• This topic was modified 8 years, 1 month ago by Gisele.