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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 878 | /** |
| 879 | * Filters the site icon URL. |
| 880 | * |
| 881 | * @since 4.4.0 |
| 882 | * |
| 883 | * @param string $url Site icon URL. |
| 884 | * @param int $size Size of the site icon. |
| 885 | * @param int $blog_id ID of the blog to get the site icon for. |
| 886 | */ |
| 887 | return apply_filters( 'get_site_icon_url', $url, $size, $blog_id ); |
| 888 | } |
| 889 | |
| 890 | /** |
| 891 | * Displays the Site Icon URL. |
| 892 | * |
| 893 | * @since 4.3.0 |
| 894 | * |
| 895 | * @param int $size Optional. Size of the site icon. Default 512 (pixels). |
| 896 | * @param string $url Optional. Fallback url if no site icon is found. Default empty. |