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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 |
|---|---|
| 2915 | * |
| 2916 | * @since 2.8.0 |
| 2917 | * |
| 2918 | * @param string $url The complete URL to the plugins directory including scheme and path. |
| 2919 | * @param string $path Path relative to the URL to the plugins directory. Blank string |
| 2920 | * if no path is specified. |
| 2921 | * @param string $plugin The plugin file path to be relative to. Blank string if no plugin |
| 2922 | * is specified. |
| 2923 | */ |
| 2924 | return apply_filters( 'plugins_url', $url, $path, $plugin ); |
| 2925 | } |
| 2926 | |
| 2927 | /** |
| 2928 | * Retrieve the site url for the current network. |
| 2929 | * |
| 2930 | * Returns the site url with the appropriate protocol, 'https' if |
| 2931 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 2932 | * overridden. |
| 2933 | * |