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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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255 |
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256 | /** |
257 | * Filter the array of term objects returned for the 'post_tag' taxonomy. |
258 | * |
259 | * @since 2.3.0 |
260 | * |
261 | * @param array $tags Array of 'post_tag' term objects. |
262 | * @param array $args An array of arguments. @see get_terms() |
263 | */ |
264 | $tags = apply_filters( 'get_tags', $tags, $args ); |
265 | return $tags; |
266 | } |
267 |
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268 | /** |
269 | * Retrieve post tag by tag ID or tag object. |
270 | * |
271 | * If you pass the $tag parameter an object, which is assumed to be the tag row |
272 | * object retrieved the database. It will cache the tag data. |
273 | * |