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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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267 | */ |
268 | function &get_tags( $args = '' ) { |
269 | $tags = get_terms( 'post_tag', $args ); |
270 |
|
271 | if ( empty( $tags ) ) { |
272 | $return = array(); |
273 | return $return; |
274 | } |
275 |
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276 | $tags = apply_filters( 'get_tags', $tags, $args ); |
277 | return $tags; |
278 | } |
279 |
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280 |
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281 | /** |
282 | * Retrieve post tag by tag ID or tag object. |
283 | * |
284 | * If you pass the $tag parameter an object, which is assumed to be the tag row |
285 | * object retrieved the database. It will cache the tag data. |