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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 |
---|---|
2815 | * |
2816 | * @since 2.7.0 |
2817 | * |
2818 | * @param string $url The complete site URL including scheme and path. |
2819 | * @param string $path Path relative to the site URL. Blank string if no path is specified. |
2820 | * @param string|null $scheme Scheme to give the site URL context. Accepts 'http', 'https', 'login', |
2821 | * 'login_post', 'admin', 'relative' or null. |
2822 | * @param int|null $blog_id Blog ID, or null for the current blog. |
2823 | */ |
2824 | return apply_filters( 'site_url', $url, $path, $scheme, $blog_id ); |
2825 | } |
2826 |
|
2827 | /** |
2828 | * Retrieve the url to the admin area for the current site. |
2829 | * |
2830 | * @since 2.6.0 |
2831 | * |
2832 | * @param string $path Optional path relative to the admin url. |
2833 | * @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes. |