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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 |
---|---|
331 | /** |
332 | * Filter the current theme directory URI. |
333 | * |
334 | * @since 1.5.0 |
335 | * |
336 | * @param string $template_dir_uri The URI of the current theme directory. |
337 | * @param string $template Directory name of the current theme. |
338 | * @param string $theme_root_uri The themes root URI. |
339 | */ |
340 | return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); |
341 | } |
342 |
|
343 | /** |
344 | * Retrieve theme roots. |
345 | * |
346 | * @since 2.9.0 |
347 | * |
348 | * @global array $wp_theme_directories |
349 | * |