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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 |
|---|---|
| 461 | * |
| 462 | * @param WP_User $item The current WP_User object. |
| 463 | * @param string $column_name The current column name. |
| 464 | */ |
| 465 | public function column_default( $item, $column_name ) { |
| 466 | // Restores the more descriptive, specific name for use within this method. |
| 467 | $user = $item; |
| 468 | |
| 469 | /** This filter is documented in wp-admin/includes/class-wp-users-list-table.php */ |
| 470 | $column_output = apply_filters( 'manage_users_custom_column', '', $column_name, $user->ID ); |
| 471 | |
| 472 | /** |
| 473 | * Filters the display output of custom columns in the Network Users list table. |
| 474 | * |
| 475 | * @since 6.8.0 |
| 476 | * |
| 477 | * @param string $output Custom column output. Default empty. |
| 478 | * @param string $column_name Name of the custom column. |
| 479 | * @param int $user_id ID of the currently-listed user. |