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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 |
|---|---|
| 5864 | |
| 5865 | if ( ! is_array( $icon_files ) ) { |
| 5866 | /** |
| 5867 | * Filters the icon directory path. |
| 5868 | * |
| 5869 | * @since 2.0.0 |
| 5870 | * |
| 5871 | * @param string $path Icon directory absolute path. |
| 5872 | */ |
| 5873 | $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); |
| 5874 | |
| 5875 | /** |
| 5876 | * Filters the icon directory URI. |
| 5877 | * |
| 5878 | * @since 2.0.0 |
| 5879 | * |
| 5880 | * @param string $uri Icon directory URI. |
| 5881 | */ |
| 5882 | $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); |