Multiple File Upload with HTML 5 and PHP

Question

I'm trying to upload multiple files and attach them to Wordpress post. This code works great with single images:

PHP

function insert_attachment($file_handler,$post_id,$setthumb='false') {
    // check to make sure its a successful upload
    if ($_FILES[$file_handler]['error'] !== UPLOAD_ERR_OK) __return_false();

    require_once(ABSPATH . "wp-admin" . '/includes/image.php');
    require_once(ABSPATH . "wp-admin" . '/includes/file.php');
    require_once(ABSPATH . "wp-admin" . '/includes/media.php');

    $attach_id = media_handle_upload( $file_handler, $post_id );

    if ($setthumb) update_post_meta($post_id,'_thumbnail_id',$attach_id);
        return $attach_id;
}

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

HTML

<fieldset class="images">
    <label for="images">Images</label>
    <input type="file" name="images" id="images" tabindex="25"/>
</fieldset>

But how can I make it work with multiple images?

I do know I have to add multiple="multiple" to the input, the name of the input should be images[]. But I definately have problems with PHP script.

Thank you for the reference, @Akam. However I would highly appreciate if you could demonstrate how I can adopt it to my PHP part. — Sergey
– Sergey, Commented Feb 12, 2013 at 7:15
its better to use multiple <input type="file" name="images[]" id="images" tabindex="25"/> instead of using HTML5 multiple feature because currently its not cross compatible. — user1646111
– user1646111, Commented Feb 12, 2013 at 7:34
Thank you for your response, @Akam. But I would like to stick to HTML5. — Sergey
– Sergey, Commented Feb 12, 2013 at 8:24

Community · Accepted Answer · 2017-04-13 12:37:28Z

1

In case someone will need this in future: I found the solution here:

// If we have files
if ( $_FILES )
{
    // Get the upload attachment files
    $files = $_FILES['upload_attachment'];

    foreach ($files['name'] as $key => $value)
    {
        if ($files['name'][$key])
        {
            $file = array(
                'name' => $files['name'][$key],
                'type' => $files['type'][$key],
                'tmp_name' => $files['tmp_name'][$key],
                'error' => $files['error'][$key],
                'size' => $files['size'][$key]
            );

            $_FILES = array("upload_attachment" => $file);

            foreach ($_FILES as $file => $array)
            {
                $newupload = insert_attachment($file,$post->ID);
            }
        }
    }
}

edited Apr 13, 2017 at 12:37

CommunityBot

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answered Feb 12, 2013 at 10:10

Sergey

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