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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 |
|---|---|
| 1918 | else |
| 1919 | $scheme = parse_url( $url, PHP_URL_SCHEME ); |
| 1920 | } |
| 1921 | |
| 1922 | $url = set_url_scheme( $url, $scheme ); |
| 1923 | |
| 1924 | if ( $path && is_string( $path ) ) |
| 1925 | $url .= '/' . ltrim( $path, '/' ); |
| 1926 | |
| 1927 | return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id ); |
| 1928 | } |
| 1929 | |
| 1930 | /** |
| 1931 | * Retrieve the site url for the current site. |
| 1932 | * |
| 1933 | * Returns the 'site_url' option with the appropriate protocol, 'https' if |
| 1934 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 1935 | * overridden. |
| 1936 | * |