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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 |
|---|---|
| 201 | else |
| 202 | return 0; |
| 203 | } |
| 204 | $link_id = (int) $wpdb->insert_id; |
| 205 | } |
| 206 | |
| 207 | wp_set_link_cats( $link_id, $link_category ); |
| 208 | |
| 209 | if ( $update ) |
| 210 | do_action( 'edit_link', $link_id ); |
| 211 | else |
| 212 | do_action( 'add_link', $link_id ); |
| 213 | |
| 214 | clean_bookmark_cache( $link_id ); |
| 215 | |
| 216 | return $link_id; |
| 217 | } |
| 218 | |
| 219 | /** |