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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 |
|---|---|
| 730 | * the query is executed. |
| 731 | * |
| 732 | * The passed WP_User_Query object contains SQL parts formed |
| 733 | * from parsing the given query. |
| 734 | * |
| 735 | * @since 3.1.0 |
| 736 | * |
| 737 | * @param WP_User_Query $query Current instance of WP_User_Query (passed by reference). |
| 738 | */ |
| 739 | do_action_ref_array( 'pre_user_query', array( &$this ) ); |
| 740 | } |
| 741 | |
| 742 | /** |
| 743 | * Execute the query, with the current variables. |
| 744 | * |
| 745 | * @since 3.1.0 |
| 746 | * |
| 747 | * @global wpdb $wpdb WordPress database abstraction object. |
| 748 | */ |