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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 |
|---|---|
| 5225 | |
| 5226 | if ( !is_array($icon_files) ) { |
| 5227 | /** |
| 5228 | * Filter the icon directory path. |
| 5229 | * |
| 5230 | * @since 2.0.0 |
| 5231 | * |
| 5232 | * @param string $path Icon directory absolute path. |
| 5233 | */ |
| 5234 | $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); |
| 5235 | |
| 5236 | /** |
| 5237 | * Filter the icon directory URI. |
| 5238 | * |
| 5239 | * @since 2.0.0 |
| 5240 | * |
| 5241 | * @param string $uri Icon directory URI. |
| 5242 | */ |
| 5243 | $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); |