Processes image URLs and YouTube iframe embeds from ACF fields during WordPress page creation via the REST API. It downloads, saves, and attaches images to the media library while extracting and storing YouTube URLs.

WordPress ACF Image and YouTube URL Uploads via REST API.md

WordPress ACF Image and YouTube URL Uploads via REST API

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// Funzione per caricare l'immagine e ottenere l'ID dell'allegato
function uploadImageAndGetID( $img_url, $post_id, $name )
{
 // Carica i file necessari per la gestione degli allegati
 if ( !function_exists( 'wp_generate_attachment_metadata' ) )
 {
  require_once( ABSPATH . 'wp-admin/includes/image.php' );
 }
 if ( !function_exists( 'wp_handle_upload' ) )
 {
  require_once( ABSPATH . 'wp-admin/includes/file.php' );
 }

 // Download dell'immagine
 $image_data = file_get_contents( $img_url );

 if ( $image_data === false )
 {
  error_log( "Download fallito per URL: " . $img_url );
  return false;
 }

 // Gestione del nome file
 $extension = getExtension( $img_url );
 $filename  = sanitize_file_name( $name . '.' . $extension );

 // Percorso di upload
 $upload_dir  = wp_upload_dir();
 $upload_path = $upload_dir[ 'path' ] . '/' . $filename;

 // Salva il file
 $save_file = file_put_contents( $upload_path, $image_data );

 if ( $save_file === false )
 {
  error_log( "Salvataggio file fallito nel percorso: " . $upload_path );
  return false;
 }

 error_log( "File salvato con successo: " . $upload_path );

 // Prepara i dati per l'allegato
 $file_type  = wp_check_filetype( $filename, null );
 $attachment = [ 
  'post_mime_type' => $file_type[ 'type' ],
  'post_title'     => $filename,
  'post_content'   => '',
  'post_status'    => 'inherit',
  'post_parent'    => $post_id,
 ];

 // Inserisce l'allegato
 $attach_id = wp_insert_attachment( $attachment, $upload_path, $post_id );

 if ( is_wp_error( $attach_id ) )
 {
  error_log( "Errore WP nell'inserimento allegato: " . $attach_id->get_error_message() );
  return false;
 }

 error_log( "Allegato inserito con successo, ID: " . $attach_id );

 // Genera i metadati dell'allegato
 $attach_data = wp_generate_attachment_metadata( $attach_id, $upload_path );
 wp_update_attachment_metadata( $attach_id, $attach_data );

 error_log( "Metadati aggiornati per ID allegato: " . $attach_id );

 return $attach_id;
}


// Funzione per estrarre l'estensione
function getExtension( $filename ) {
    $filename = strtok( $filename, '?' );
    $path_info = pathinfo( $filename );
    return isset( $path_info['extension'] ) ? strtolower( $path_info['extension'] ) : 'jpg';
}

// Funzione per elaborare ricorsivamente i campi ACF
// Funzione per estrarre l'URL di YouTube da un iframe e pulirlo
function extractYoutubeUrl( $iframe_string )
{
 $pattern = '/src="([^"]+)"/';
 preg_match( $pattern, $iframe_string, $matches );

 if ( isset( $matches[ 1 ] ) )
 {
  // Estrai l'URL base rimuovendo tutti i parametri dopo il ?
  $url = preg_replace( '/\?.*/', '', $matches[ 1 ] );
  return $url;
 }

 return false;
}

// Modifica alla funzione processACFImagesUpload per gestire i campi video
function processACFImagesUpload( $data, $post_id )
{
 $updated_data = $data;

 foreach ( $data as $key => $value )
 {
  // Salta i campi specifici
  if ( $key === 'sizes' || $key === 'icon' )
  {
   continue;
  }

  // Controlla se il valore è un iframe di YouTube
  if ( is_string( $value ) && strpos( $value, '<iframe' ) !== false && strpos( $value, 'youtube.com' ) !== false )
  {
   $youtube_url = extractYoutubeUrl( $value );
   if ( $youtube_url )
   {
    $updated_data[ $key ] = $youtube_url;
    continue;
   }
  }

  // Gestione esistente per le immagini
  if ( is_string( $value ) && filter_var( $value, FILTER_VALIDATE_URL ) )
  {
   $path_info        = pathinfo( strtok( $value, '?' ) );
   $image_extensions = [ 'jpg', 'jpeg', 'png', 'gif', 'webp', 'svg' ];

   if ( isset( $path_info[ 'extension' ] ) && in_array( strtolower( $path_info[ 'extension' ] ), $image_extensions ) )
   {
    $filename      = sanitize_title( $path_info[ 'filename' ] ?: 'image' );
    $attachment_id = uploadImageAndGetID( $value, $post_id, $filename );

    if ( $attachment_id )
    {
     $updated_data[ $key ] = $attachment_id;
    }
   }
  }
  elseif ( is_array( $value ) )
  {
   $updated_data[ $key ] = processACFImagesUpload( $value, $post_id );
  }
 }

 return $updated_data;
}

// Hook per l'inserimento della pagina
add_action( 'rest_insert_page', function (\WP_Post $post, $request, $creating)
{
 $acf_data = $request->get_param( 'fields' );

 if ( is_array( $acf_data ) )
 {
  $updated_acf = processACFImagesUpload( $acf_data, $post->ID );

  foreach ( $updated_acf as $section_key => $section_value )
  {


   // Debug
   error_log( "Aggiornamento campo ACF: " . $section_key . " - Valore: " . $section_value );

   update_field( $section_key, $section_value, $post->ID );
  }
 }
}, 999999, 3 );

// Abilita le meta query nell'API REST
add_filter( 'rest_allow_meta_query', '__return_true' );

Associated Context
Type	Code Snippet ( .php )
Associated Tags	uploadImageAndGetID wp_generate_attachment_metadata wp_handle_upload wp_upload_dir wp_check_filetype sanitize_file_name file_get_contents error_log post_mime_type Framework: WordPress WordPress ACF REST API Image Upload Attachment Media Library YouTube Iframe PHP Web Development
💡 Smart Description	This code snippet defines a function called "uploadImageAndGetID" that takes in an image URL, post ID, and name as parameters. It checks if the file is valid or does not exist on this directory (wp-admin/includes/image.php). If Processes image URLs and YouTube iframe embeds from ACF fields during WordPress page creation via the REST API. It downloads, saves, and attaches images to the media library while extracting and storing YouTube URLs.
🔎 Suggested Searches	PHP function to upload image and ID How to generate attachment metadata in WordPress using wp_generate_attachment_metadata Download fallito per URL with WP-admin/includes/file php Code snippet for uploading file as a specific extension on an uploaded post PHP code example for downloading dell'immagine WordPress ACF REST API Image Upload YouTube Iframe Media Library Attachment wp_insert_attachment wp_generate_attachment_metadata
Related Links	https://www.geeksforgeeks.org/php-print_r-function/ https://www.geeksforgeeks.org/php-sessions/ https://www.geeksforgeeks.org/php-str_replace-function/ https://www.php.net/manual/en/function.file-put-contents.php https://www.php.net/manual/en/function.session-set-save-handler.php https://www.php.net/manual/en/function.file-get-contents.php https://developer.wordpress.org/rest-api/ https://www.advancedcustomfields.com/resources/
Related People	Davide Ladisa
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Shareable Link	https://davideladisa.pieces.cloud/?p=2c17459819