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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 |
|---|---|
| 54 | * Filter the taxonomy used in the Tag Cloud widget. |
| 55 | * |
| 56 | * @since 2.8.0 |
| 57 | * @since 3.0.0 Added taxonomy drop-down. |
| 58 | * |
| 59 | * @see wp_tag_cloud() |
| 60 | * |
| 61 | * @param array $current_taxonomy The taxonomy to use in the tag cloud. Default 'tags'. |
| 62 | */ |
| 63 | $tag_cloud = wp_tag_cloud( apply_filters( 'widget_tag_cloud_args', array( |
| 64 | 'taxonomy' => $current_taxonomy, |
| 65 | 'echo' => false |
| 66 | ) ) ); |
| 67 | |
| 68 | if ( empty( $tag_cloud ) ) { |
| 69 | return; |
| 70 | } |
| 71 | |
| 72 | /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ |