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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 |
|---|---|
| 300 | /** |
| 301 | * Filter the current theme directory path. |
| 302 | * |
| 303 | * @since 1.5.0 |
| 304 | * |
| 305 | * @param string $template_dir The URI of the current theme directory. |
| 306 | * @param string $template Directory name of the current theme. |
| 307 | * @param string $theme_root Absolute path to the themes directory. |
| 308 | */ |
| 309 | return apply_filters( 'template_directory', $template_dir, $template, $theme_root ); |
| 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Retrieve theme directory URI. |
| 314 | * |
| 315 | * @since 1.5.0 |
| 316 | * |
| 317 | * @return string Template directory URI. |
| 318 | */ |