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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 |
|---|---|
| 6448 | |
| 6449 | if ( ! is_array( $icon_files ) ) { |
| 6450 | /** |
| 6451 | * Filters the icon directory path. |
| 6452 | * |
| 6453 | * @since 2.0.0 |
| 6454 | * |
| 6455 | * @param string $path Icon directory absolute path. |
| 6456 | */ |
| 6457 | $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); |
| 6458 | |
| 6459 | /** |
| 6460 | * Filters the icon directory URI. |
| 6461 | * |
| 6462 | * @since 2.0.0 |
| 6463 | * |
| 6464 | * @param string $uri Icon directory URI. |
| 6465 | */ |
| 6466 | $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); |