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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 |
---|---|
2556 | /** |
2557 | * Filter the admin area URL. |
2558 | * |
2559 | * @since 2.8.0 |
2560 | * |
2561 | * @param string $url The complete admin area URL including scheme and path. |
2562 | * @param string $path Path relative to the admin area URL. Blank string if no path is specified. |
2563 | * @param int|null $blog_id Blog ID, or null for the current blog. |
2564 | */ |
2565 | return apply_filters( 'admin_url', $url, $path, $blog_id ); |
2566 | } |
2567 |
|
2568 | /** |
2569 | * Retrieve the url to the includes directory. |
2570 | * |
2571 | * @since 2.6.0 |
2572 | * |
2573 | * @param string $path Optional. Path relative to the includes url. |
2574 | * @param string $scheme Optional. Scheme to give the includes url context. |