Share code upload tải ảnh multiple file WordPress

Form khung upload file gắn vào phần đăng bài viết.

wp_nonce_field( 'upload_attachment', 'my_image_upload_nonce' );

Rồi bạn sử dụng code sau gắn vào phần đăng bài PHP

if ($_FILES) {
require_once( ABSPATH . 'wp-admin/includes/image.php' );
require_once( ABSPATH . 'wp-admin/includes/file.php' );
require_once( ABSPATH . 'wp-admin/includes/media.php' );

$files = $_FILES['upload_attachment'];
$count = 0;
$galleryImages = array();

foreach ($files['name'] as $count =&gt; $value) {

if ($files['name'][$count]) {

$file = array(
'name' => $files['name'][$count],
'type' => $files['type'][$count],
'tmp_name' => $files['tmp_name'][$count],
'error' => $files['error'][$count],
'size' => $files['size'][$count]
);

$upload_overrides = array( 'test_form' =&gt; false );
$upload = wp_handle_upload($file, $upload_overrides);

// $filename should be the path to a file in the upload directory.
$filename = $upload['file'];

// The ID of the post this attachment is for.
$parent_post_id = $post_id;

// Check the type of tile. We'll use this as the 'post_mime_type'.
$filetype = wp_check_filetype( basename( $filename ), null );

// Get the path to the upload directory.
$wp_upload_dir = wp_upload_dir();

// Prepare an array of post data for the attachment.
$attachment = array(
'guid' => $wp_upload_dir['url'] . '/' . basename( $filename ),
'post_mime_type' => $filetype['type'],
'post_title' => preg_replace( '/\.[^.]+$/', '', basename( $filename ) ),
'post_content' => '',
'post_status' => 'inherit'
);

// Insert the attachment.
$attach_id = wp_insert_attachment( $attachment, $filename, $parent_post_id );

// Make sure that this file is included, as wp_generate_attachment_metadata() depends on it.
require_once( ABSPATH . 'wp-admin/includes/image.php' );

// Generate the metadata for the attachment, and update the database record.
$attach_data = wp_generate_attachment_metadata( $attach_id, $filename );
wp_update_attachment_metadata( $attach_id, $attach_data );

array_push($galleryImages, $attach_id);

}

$count++;

// add images to the gallery field
update_field('field_535e6a644107b', $galleryImages, $post_id);

}

}

Chúc các bạn thành công.