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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 |
---|---|
351 | /** |
352 | * Filters the current theme directory URI. |
353 | * |
354 | * @since 1.5.0 |
355 | * |
356 | * @param string $template_dir_uri The URI of the current theme directory. |
357 | * @param string $template Directory name of the current theme. |
358 | * @param string $theme_root_uri The themes root URI. |
359 | */ |
360 | return apply_filters( 'template_directory_uri', $template_dir_uri, $template, $theme_root_uri ); |
361 | } |
362 |
|
363 | /** |
364 | * Retrieve theme roots. |
365 | * |
366 | * @since 2.9.0 |
367 | * |
368 | * @global array $wp_theme_directories |
369 | * |