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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 |
|---|---|
| 6314 | |
| 6315 | if ( ! is_array( $icon_files ) ) { |
| 6316 | /** |
| 6317 | * Filters the icon directory path. |
| 6318 | * |
| 6319 | * @since 2.0.0 |
| 6320 | * |
| 6321 | * @param string $path Icon directory absolute path. |
| 6322 | */ |
| 6323 | $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); |
| 6324 | |
| 6325 | /** |
| 6326 | * Filters the icon directory URI. |
| 6327 | * |
| 6328 | * @since 2.0.0 |
| 6329 | * |
| 6330 | * @param string $uri Icon directory URI. |
| 6331 | */ |
| 6332 | $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); |