Title: Error when adding additional attributes
Last modified: September 1, 2016

---

# Error when adding additional attributes

 *  Resolved [Aldo](https://wordpress.org/support/users/ab_lu/)
 * (@ab_lu)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/error-when-adding-additional-attributes/)
 * Hi Stefan
 * We try to add some additional attributes to the img tag:
 *     ```
       'attributes' => array(
                                   'img' => array(
                                         'class'           => 'lazyload img-responsive',
                                         'data-sizes'      => 'auto',
                                         'data-parent-fit' => 'cover'
                                     )
                                   )
       ```
   
 * Unfortunately we get then the following error:
 *     ```
       <b>Warning</b>:  Illegal string offset 'property' in <b>/Volumes/Data/WEB/HTDOCS/site/web/app/plugins/responsify-wp/includes/img.php</b> on line <b>43</b><br />
       <br />
       <b>Warning</b>:  Illegal string offset 'value' in <b>/Volumes/Data/WEB/HTDOCS/site/web/app/plugins/responsify-wp/includes/img.php</b> on line <b>43</b><br />
       <br />
       <b>Warning</b>:  Illegal string offset 'property' in <b>/Volumes/Data/WEB/HTDOCS/site/web/app/plugins/responsify-wp/includes/img.php</b> on line <b>43</b><br />
       <br />
       <b>Warning</b>:  Illegal string offset 'value' in <b>/Volumes/Data/WEB/HTDOCS/site/web/app/plugins/responsify-wp/includes/img.php</b> on line <b>43</b><br />
       ```
   
 * Any idea?
 * [https://wordpress.org/plugins/responsify-wp/](https://wordpress.org/plugins/responsify-wp/)

Viewing 4 replies - 16 through 19 (of 19 total)

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 *  Plugin Author [stefanledin](https://wordpress.org/support/users/stefanledin/)
 * (@stefanledin)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/error-when-adding-additional-attributes/page/2/#post-7544918)
 * No, it’s a regular image size and WordPress doesn’t add the name of it to the
   filename.
    If you turn on the debug mode, you’ll see exactly which image sizes
   that’s being used.
 *  Thread Starter [Aldo](https://wordpress.org/support/users/ab_lu/)
 * (@ab_lu)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/error-when-adding-additional-attributes/page/2/#post-7544920)
 * Ok. But why are they added twice?
    This is unnecessary code, not?
 *  Plugin Author [stefanledin](https://wordpress.org/support/users/stefanledin/)
 * (@stefanledin)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/error-when-adding-additional-attributes/page/2/#post-7544922)
 * They isn’t added twice, but since both `image-xs@2x` and `image-md` is exactly
   the same, it appears to be the same images.
 *     ```
       add_image_size( 'image-xs', 385, 9999 );
       Webseite_Mood-385x261.jpg 385w,
   
       add_image_size( 'image-xs@2x', 770, 9999 );
       Webseite_Mood-770x522.jpg 770w,
   
       add_image_size( 'image-sm', 500, 9999 );
       Webseite_Mood-500x339.jpg 500w,
   
       add_image_size( 'image-sm@2x', 1000, 9999 );
       Webseite_Mood-1000x678.jpg 1000w,
   
       add_image_size( 'image-md', 770, 9999 );
       Webseite_Mood-770x522.jpg 770w,
   
       add_image_size( 'image-md@2x', 1540, 9999 );
       Webseite_Mood-1540x1045.jpg 1540w,
   
       add_image_size( 'image-lg', 1000, 9999 );
       Webseite_Mood-1000x678.jpg 1000w,
   
       add_image_size( 'image-lg@2x', 2000, 9999 );
       Webseite_Mood-2000x1357.jpg 2000w,
   
       add_image_size( 'image-xlg', 1540, 9999 );
       Webseite_Mood-1540x1045.jpg 1540w
       ```
   
 * Since you have retina sizes that are equal to larger, “regular” sizes, you can
   turn off retina when using `rwp_img()`.
 *  Thread Starter [Aldo](https://wordpress.org/support/users/ab_lu/)
 * (@ab_lu)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/error-when-adding-additional-attributes/page/2/#post-7544933)
 * Great, thanks!

Viewing 4 replies - 16 through 19 (of 19 total)

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The topic ‘Error when adding additional attributes’ is closed to new replies.

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 * 19 replies
 * 2 participants
 * Last reply from: [Aldo](https://wordpress.org/support/users/ab_lu/)
 * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/error-when-adding-additional-attributes/page/2/#post-7544933)
 * Status: resolved