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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 |
|---|---|
| 757 | * the query is executed. |
| 758 | * |
| 759 | * The passed WP_User_Query object contains SQL parts formed |
| 760 | * from parsing the given query. |
| 761 | * |
| 762 | * @since 3.1.0 |
| 763 | * |
| 764 | * @param WP_User_Query $query Current instance of WP_User_Query (passed by reference). |
| 765 | */ |
| 766 | do_action_ref_array( 'pre_user_query', array( &$this ) ); |
| 767 | } |
| 768 | |
| 769 | /** |
| 770 | * Executes the query, with the current variables. |
| 771 | * |
| 772 | * @since 3.1.0 |
| 773 | * |
| 774 | * @global wpdb $wpdb WordPress database abstraction object. |
| 775 | */ |