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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 |
|---|---|
| 2087 | * @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. |
| 2088 | * @return string Admin url link with optional path appended. |
| 2089 | */ |
| 2090 | function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) { |
| 2091 | $url = get_site_url($blog_id, 'wp-admin/', $scheme); |
| 2092 | |
| 2093 | if ( $path && is_string( $path ) ) |
| 2094 | $url .= ltrim( $path, '/' ); |
| 2095 | |
| 2096 | return apply_filters( 'admin_url', $url, $path, $blog_id ); |
| 2097 | } |
| 2098 | |
| 2099 | /** |
| 2100 | * Retrieve the url to the includes directory. |
| 2101 | * |
| 2102 | * @package WordPress |
| 2103 | * @since 2.6.0 |
| 2104 | * |
| 2105 | * @param string $path Optional. Path relative to the includes url. |