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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 |
|---|---|
| 196 | /** |
| 197 | * Filters the stylesheet directory path for the active theme. |
| 198 | * |
| 199 | * @since 1.5.0 |
| 200 | * |
| 201 | * @param string $stylesheet_dir Absolute path to the active theme. |
| 202 | * @param string $stylesheet Directory name of the active theme. |
| 203 | * @param string $theme_root Absolute path to themes directory. |
| 204 | */ |
| 205 | return apply_filters( 'stylesheet_directory', $stylesheet_dir, $stylesheet, $theme_root ); |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Retrieves stylesheet directory URI for the active theme. |
| 210 | * |
| 211 | * @since 1.5.0 |
| 212 | * |
| 213 | * @return string URI to active theme's stylesheet directory. |
| 214 | */ |