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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 |
|---|---|
| 287 | /** |
| 288 | * Fires immediately before a user is deleted from the database. |
| 289 | * |
| 290 | * @since 2.0.0 |
| 291 | * |
| 292 | * @param int $id ID of the user to delete. |
| 293 | * @param int|null $reassign ID of the user to reassign posts and links to. |
| 294 | * Default null, for no reassignment. |
| 295 | */ |
| 296 | do_action( 'delete_user', $id, $reassign ); |
| 297 | |
| 298 | if ( null === $reassign ) { |
| 299 | $post_types_to_delete = array(); |
| 300 | foreach ( get_post_types( array(), 'objects' ) as $post_type ) { |
| 301 | if ( $post_type->delete_with_user ) { |
| 302 | $post_types_to_delete[] = $post_type->name; |
| 303 | } elseif ( null === $post_type->delete_with_user && post_type_supports( $post_type->name, 'author' ) ) { |
| 304 | $post_types_to_delete[] = $post_type->name; |
| 305 | } |