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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 |
|---|---|
| 503 | * |
| 504 | * Does not have trailing slash. |
| 505 | * |
| 506 | * @since 1.5.0 |
| 507 | * @uses apply_filters() Calls 'theme_root' filter on path. |
| 508 | * |
| 509 | * @return string Theme path. |
| 510 | */ |
| 511 | function get_theme_root() { |
| 512 | return apply_filters('theme_root', WP_CONTENT_DIR . "/themes"); |
| 513 | } |
| 514 | |
| 515 | /** |
| 516 | * Retrieve URI for themes directory. |
| 517 | * |
| 518 | * Does not have trailing slash. |
| 519 | * |
| 520 | * @since 1.5.0 |
| 521 | * |