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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 |
|---|---|
| 1862 | $home = get_option( 'home' ); |
| 1863 | else |
| 1864 | $home = get_blog_option( $blog_id, 'home' ); |
| 1865 | |
| 1866 | $url = str_replace( 'http://', "$scheme://", $home ); |
| 1867 | |
| 1868 | if ( !empty( $path ) && is_string( $path ) && strpos( $path, '..' ) === false ) |
| 1869 | $url .= '/' . ltrim( $path, '/' ); |
| 1870 | |
| 1871 | return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id ); |
| 1872 | } |
| 1873 | |
| 1874 | /** |
| 1875 | * Retrieve the site url for the current site. |
| 1876 | * |
| 1877 | * Returns the 'site_url' option with the appropriate protocol, 'https' if |
| 1878 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 1879 | * overridden. |
| 1880 | * |