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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 |
|---|---|
| 1129 | /** |
| 1130 | * Filters the custom logo output. |
| 1131 | * |
| 1132 | * @since 4.5.0 |
| 1133 | * @since 4.6.0 Added the `$blog_id` parameter. |
| 1134 | * |
| 1135 | * @param string $html Custom logo HTML output. |
| 1136 | * @param int $blog_id ID of the blog to get the custom logo for. |
| 1137 | */ |
| 1138 | return apply_filters( 'get_custom_logo', $html, $blog_id ); |
| 1139 | } |
| 1140 | |
| 1141 | /** |
| 1142 | * Displays a custom logo, linked to home unless the theme supports removing the link on the home page. |
| 1143 | * |
| 1144 | * @since 4.5.0 |
| 1145 | * |
| 1146 | * @param int $blog_id Optional. ID of the blog in question. Default is the ID of the current blog. |
| 1147 | */ |