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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 |
|---|---|
| 808 | /** |
| 809 | * Filters the site icon URL. |
| 810 | * |
| 811 | * @since 4.4.0 |
| 812 | * |
| 813 | * @param string $url Site icon URL. |
| 814 | * @param int $size Size of the site icon. |
| 815 | * @param int $blog_id ID of the blog to get the site icon for. |
| 816 | */ |
| 817 | return apply_filters( 'get_site_icon_url', $url, $size, $blog_id ); |
| 818 | } |
| 819 | |
| 820 | /** |
| 821 | * Displays the Site Icon URL. |
| 822 | * |
| 823 | * @since 4.3.0 |
| 824 | * |
| 825 | * @param int $size Optional. Size of the site icon. Default 512 (pixels). |
| 826 | * @param string $url Optional. Fallback url if no site icon is found. Default empty. |