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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 |
|---|---|
| 698 | if ( $url ) { |
| 699 | /** |
| 700 | * Filter the URL returned by get_bloginfo(). |
| 701 | * |
| 702 | * @since 2.0.5 |
| 703 | * |
| 704 | * @param mixed $output The URL returned by bloginfo(). |
| 705 | * @param mixed $show Type of information requested. |
| 706 | */ |
| 707 | $output = apply_filters( 'bloginfo_url', $output, $show ); |
| 708 | } else { |
| 709 | /** |
| 710 | * Filter the site information returned by get_bloginfo(). |
| 711 | * |
| 712 | * @since 0.71 |
| 713 | * |
| 714 | * @param mixed $output The requested non-URL site information. |
| 715 | * @param mixed $show Type of information requested. |
| 716 | */ |