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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 |
|---|---|
| 356 | /** |
| 357 | * Filters the active theme directory URI. |
| 358 | * |
| 359 | * @since 1.5.0 |
| 360 | * |
| 361 | * @param string $template_dir_uri The URI of the active theme directory. |
| 362 | * @param string $template Directory name of the active theme. |
| 363 | * @param string $theme_root_uri The themes root URI. |
| 364 | */ |
| 365 | return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * Retrieves theme roots. |
| 370 | * |
| 371 | * @since 2.9.0 |
| 372 | * |
| 373 | * @global array $wp_theme_directories |
| 374 | * |