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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 |
|---|---|
| 926 | /** |
| 927 | * Filters the custom logo output. |
| 928 | * |
| 929 | * @since 4.5.0 |
| 930 | * @since 4.6.0 Added the `$blog_id` parameter. |
| 931 | * |
| 932 | * @param string $html Custom logo HTML output. |
| 933 | * @param int $blog_id ID of the blog to get the custom logo for. |
| 934 | */ |
| 935 | return apply_filters( 'get_custom_logo', $html, $blog_id ); |
| 936 | } |
| 937 | |
| 938 | /** |
| 939 | * Displays a custom logo, linked to home. |
| 940 | * |
| 941 | * @since 4.5.0 |
| 942 | * |
| 943 | * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog. |
| 944 | */ |