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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 |
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57 | * Filter the taxonomy used in the Tag Cloud widget. |
58 | * |
59 | * @since 2.8.0 |
60 | * @since 3.0.0 Added taxonomy drop-down. |
61 | * |
62 | * @see wp_tag_cloud() |
63 | * |
64 | * @param array $current_taxonomy The taxonomy to use in the tag cloud. Default 'tags'. |
65 | */ |
66 | $tag_cloud = wp_tag_cloud( apply_filters( 'widget_tag_cloud_args', array( |
67 | 'taxonomy' => $current_taxonomy, |
68 | 'echo' => false |
69 | ) ) ); |
70 |
|
71 | if ( empty( $tag_cloud ) ) { |
72 | return; |
73 | } |
74 |
|
75 | /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */ |