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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 |
|---|---|
| 591 | } |
| 592 | |
| 593 | /** |
| 594 | * Filters the absolute path to the themes directory. |
| 595 | * |
| 596 | * @since 1.5.0 |
| 597 | * |
| 598 | * @param string $theme_root Absolute path to themes directory. |
| 599 | */ |
| 600 | return apply_filters( 'theme_root', $theme_root ); |
| 601 | } |
| 602 | |
| 603 | /** |
| 604 | * Retrieve URI for themes directory. |
| 605 | * |
| 606 | * Does not have trailing slash. |
| 607 | * |
| 608 | * @since 1.5.0 |
| 609 | * |