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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 |
|---|---|
| 6908 | |
| 6909 | if ( ! is_array( $icon_files ) ) { |
| 6910 | /** |
| 6911 | * Filters the icon directory path. |
| 6912 | * |
| 6913 | * @since 2.0.0 |
| 6914 | * |
| 6915 | * @param string $path Icon directory absolute path. |
| 6916 | */ |
| 6917 | $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); |
| 6918 | |
| 6919 | /** |
| 6920 | * Filters the icon directory URI. |
| 6921 | * |
| 6922 | * @since 2.0.0 |
| 6923 | * |
| 6924 | * @param string $uri Icon directory URI. |
| 6925 | */ |
| 6926 | $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); |