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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 |
|---|---|
| 3446 | * |
| 3447 | * @since 2.8.0 |
| 3448 | * |
| 3449 | * @param string $url The complete URL to the plugins directory including scheme and path. |
| 3450 | * @param string $path Path relative to the URL to the plugins directory. Blank string |
| 3451 | * if no path is specified. |
| 3452 | * @param string $plugin The plugin file path to be relative to. Blank string if no plugin |
| 3453 | * is specified. |
| 3454 | */ |
| 3455 | return apply_filters( 'plugins_url', $url, $path, $plugin ); |
| 3456 | } |
| 3457 | |
| 3458 | /** |
| 3459 | * Retrieves the site URL for the current network. |
| 3460 | * |
| 3461 | * Returns the site URL with the appropriate protocol, 'https' if |
| 3462 | * is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is |
| 3463 | * overridden. |
| 3464 | * |