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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 |
|---|---|
| 447 | * |
| 448 | * @since 4.3.0 |
| 449 | * @since 5.9.0 Renamed `$user` to `$item` to match parent class for PHP 8 named parameter support. |
| 450 | * |
| 451 | * @param WP_User $item The current WP_User object. |
| 452 | * @param string $column_name The current column name. |
| 453 | */ |
| 454 | public function column_default( $item, $column_name ) { |
| 455 | /** This filter is documented in wp-admin/includes/class-wp-users-list-table.php */ |
| 456 | echo apply_filters( |
| 457 | 'manage_users_custom_column', |
| 458 | '', // Custom column output. Default empty. |
| 459 | $column_name, |
| 460 | $item->ID // User ID. |
| 461 | ); |
| 462 | } |
| 463 | |
| 464 | public function display_rows() { |
| 465 | foreach ( $this->items as $user ) { |