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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 |
---|---|
1973 | else |
1974 | $scheme = parse_url( $url, PHP_URL_SCHEME ); |
1975 | } |
1976 |
|
1977 | $url = set_url_scheme( $url, $scheme ); |
1978 |
|
1979 | if ( $path && is_string( $path ) ) |
1980 | $url .= '/' . ltrim( $path, '/' ); |
1981 |
|
1982 | return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id ); |
1983 | } |
1984 |
|
1985 | /** |
1986 | * Retrieve the site url for the current site. |
1987 | * |
1988 | * Returns the 'site_url' option with the appropriate protocol, 'https' if |
1989 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
1990 | * overridden. |
1991 | * |