[wp-trac] [WordPress Trac] #58197: $blog_id always returns 0 in get_site_icon_url hook

[WordPress Trac]

#58197: $blog_id always returns 0 in get_site_icon_url hook
--------------------------+-----------------------------
 Reporter:  revxx14       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Customize     |    Version:  6.2
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 I recently tried to set up a default site icon, and ran in to an issue
 with multisites. When using the get_site_icon_url hook, like so,
 `$blog_id` always returns 0 in a multisite.

 {{{#!php
 <?php
 /**
  * Register favicon
  *
  * @param string $url
  * @param integer $size
  * @param integer $blog_id
  * @return string
  */
 function mytheme_set_site_icon_url(string $url, int $size, int $blog_id):
 string {
     if (get_current_blog_id() === $blog_id) {
         return get_theme_file_uri("assets/media/logo-
 favicon-{$size}x{$size}.svg");
     }

     return $url;
 }
 add_filter("get_site_icon_url", "mytheme_set_site_icon_url", 10, 3);
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/58197>
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