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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 |
|---|---|
| 274 | |
| 275 | /** |
| 276 | * Filters the array of term objects returned for the 'post_tag' taxonomy. |
| 277 | * |
| 278 | * @since 2.3.0 |
| 279 | * |
| 280 | * @param array $tags Array of 'post_tag' term objects. |
| 281 | * @param array $args An array of arguments. @see get_terms() |
| 282 | */ |
| 283 | $tags = apply_filters( 'get_tags', $tags, $args ); |
| 284 | return $tags; |
| 285 | } |
| 286 | |
| 287 | /** |
| 288 | * Retrieve post tag by tag ID or tag object. |
| 289 | * |
| 290 | * If you pass the $tag parameter an object, which is assumed to be the tag row |
| 291 | * object retrieved the database. It will cache the tag data. |
| 292 | * |