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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 |
|---|---|
| 1970 | $url = get_option( 'siteurl' ); |
| 1971 | restore_current_blog(); |
| 1972 | } |
| 1973 | |
| 1974 | $url = set_url_scheme( $url, $scheme ); |
| 1975 | |
| 1976 | if ( $path && is_string( $path ) ) |
| 1977 | $url .= '/' . ltrim( $path, '/' ); |
| 1978 | |
| 1979 | return apply_filters( 'site_url', $url, $path, $scheme, $blog_id ); |
| 1980 | } |
| 1981 | |
| 1982 | /** |
| 1983 | * Retrieve the url to the admin area for the current site. |
| 1984 | * |
| 1985 | * @package WordPress |
| 1986 | * @since 2.6.0 |
| 1987 | * |
| 1988 | * @param string $path Optional path relative to the admin url. |