[wp-trac] [WordPress Trac] #56056: Specify a Custom Array of $sizes for `wp_get_attachment_image` to Reduce HTML Bloat

[WordPress Trac]

#56056: Specify a Custom Array of $sizes for `wp_get_attachment_image` to Reduce
HTML Bloat
-----------------------------+-----------------------------
 Reporter:  xmic             |      Owner:  (none)
     Type:  enhancement      |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Post Thumbnails  |    Version:  trunk
 Severity:  normal           |   Keywords:  needs-patch
  Focuses:  performance      |
-----------------------------+-----------------------------
 Plugins and the theme can specify multiple thumbnail sizes. Using
 `wp_get_attachment_image` provides a modern solution to responsive image
 sizes, however, it does not currently account for reducing the bloat to
 all the registered thumbnail sizes that are added by plugins / theme.

 Therefore a proposal is to allow a custom list of thumbnails to use, this
 can, for example, be specified as:

 {{{#!php
 <?php
 wp_get_attachment_image(123, [['thumbnail', [1200, 630], 'medium',
 'large'], true]);
 }}}


 Where the `true` is to identify that we want to enable a specified list of
 thumbnail sizes, and not use all of the thumbnail sizes registered.

 It will only loop through the specified `$sizes` that were mentioned in
 the $sizes parameter.

 HTML document size is a large factor in determining if a website is to be
 bloated or not. Therefore it would be beneficial to allow developers to
 specify specific thumbnail sizes that are to be used for what it is
 intended for.

 Kind regards,
 Michael

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Ticket URL: <https://core.trac.wordpress.org/ticket/56056>
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