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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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260 | */ |
261 | function &get_tags( $args = '' ) { |
262 | $tags = get_terms( 'post_tag', $args ); |
263 |
|
264 | if ( empty( $tags ) ) { |
265 | $return = array(); |
266 | return $return; |
267 | } |
268 |
|
269 | $tags = apply_filters( 'get_tags', $tags, $args ); |
270 | return $tags; |
271 | } |
272 |
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273 |
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274 | /** |
275 | * Retrieve post tag by tag ID or tag object. |
276 | * |
277 | * If you pass the $tag parameter an object, which is assumed to be the tag row |
278 | * object retrieved the database. It will cache the tag data. |