Remove an image that was not put in uploads folder via wp_handle_upload

Question

I\'m saving an image to uploads folder, but I\'m using file_put_contents instead of wp_handle_upload - because I get an image in base64 and not as a file in $_FILES.

Im

Answer 1

I actually accomplished this before I saw an answer here, so I'm providing a solution here if someone runs into the same problem. I used the function below (first one) and also using wp_delete_attachment after just to be sure all stuff got removed.

/**
 * Attempt at removing all images in uploads folder by providing an image url 
 * Example: 
 *   - Provide http://mypage.com/wp-content/themes/mytheme/uploads/2015/12/testImage.jpg
 *   - this should remove all its images created when uploading:
 *   - testImage-150x150.jpg, testImage-300x300.jpg etc and also the provided original image 
 *
 * We'r doing this because wp_delete_attachment() will not remove an image that was uploaded via a 
 * custom mytheme_upload_image() function (which is providing base64 image instead of file in $_FILES)
 *
 * TODO TODO mytheme_get_image_sizes() does not return ALL IMAGES THAT WERE CREATED (all sizes)
 */
function mytheme_remove_all_image_sizes_from_uploads($primary_image_url) {

    $pi = pathinfo($primary_image_url);

    $img_dirname = $pi['dirname'];
    $img_dirname_exploded = explode('/',$img_dirname);   
    $last_dir = array_pop($img_dirname_exploded); // month usually (two digits)
    $second_last_dir = array_pop($img_dirname_exploded); // year usually (4 digits)

    $basename = $pi['basename']; // without trailing /
    $img_name = $pi['filename'];
    $img_extension = $pi['extension'];

    $uploads = wp_upload_dir();
    $base_uploads_dir = $uploads['basedir']; // without trailing /

    $path_to_appropriate_uploads_dir =      $base_uploads_dir.'/'.$second_last_dir.'/'.$last_dir.'/';

    $img_name_to_remove = $img_name.'.'.$img_extension; // UNLINK

    if(!@unlink($path_to_appropriate_uploads_dir.$img_name_to_remove)) {
       // this image was not removed
    }

    $image_sizes = mytheme_get_image_sizes();

    foreach($image_sizes as $size) {
       $img_name_to_remove = $img_name.'-'.$size.'.'.$img_extension; // UNLINK
       $img_path = $path_to_appropriate_uploads_dir.$img_name_to_remove;

       if(mytheme_image_on_url_exists($img_path) && !@unlink($img_path)) {
          // this image was not removed
       }
    }

 }


    /**
 * Get size information for all currently-registered image sizes.
 * Found an example of this on one of the wordpress' example pages ..
 *
 * @global $_wp_additional_image_sizes
 * @uses   get_intermediate_image_sizes()
 * @return array $sizes Data for all currently-registered image sizes.
 * TODO TODO mytheme_get_image_sizes() does not return ALL IMAGES THAT WERE CREATED (all sizes)
 */
function mytheme_get_image_sizes() {
    global $_wp_additional_image_sizes;

    $sizes = array();

    foreach ( get_intermediate_image_sizes() as $_size ) {

        if ( in_array( $_size, array( 'thumbnail', 'medium', 'large' ) ) ) {

            $width = get_option( "{$_size}_size_w" );
            $height = get_option( "{$_size}_size_h" );

        } elseif ( isset( $_wp_additional_image_sizes[ $_size ] ) ) {

            $width = $_wp_additional_image_sizes[ $_size ]['width'];
            $height = $_wp_additional_image_sizes[ $_size ]['height'];

        }

        $img_name_end = $width."x".$height;

        if(!in_array($img_name_end,$sizes)) {
            $sizes[] = $img_name_end;
        }

    }

    // ADD CUSTOM SIZES (this one is not returned otherwise?!)
    $sizes[] = '300x200';

    return $sizes;
}