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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 |
|---|---|
| 2454 | * Filter the home URL. |
| 2455 | * |
| 2456 | * @since 3.0.0 |
| 2457 | * |
| 2458 | * @param string $url The complete home URL including scheme and path. |
| 2459 | * @param string $path Path relative to the home URL. Blank string if no path is specified. |
| 2460 | * @param string|null $orig_scheme Scheme to give the home URL context. Accepts 'http', 'https', 'relative' or null. |
| 2461 | * @param int|null $blog_id Blog ID, or null for the current blog. |
| 2462 | */ |
| 2463 | return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id ); |
| 2464 | } |
| 2465 | |
| 2466 | /** |
| 2467 | * Retrieve the site url for the current site. |
| 2468 | * |
| 2469 | * Returns the 'site_url' option with the appropriate protocol, 'https' if |
| 2470 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 2471 | * overridden. |
| 2472 | * |