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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 |
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771 | * The default columns depend on the search term, and include 'user_email', |
772 | * 'user_login', 'ID', 'user_url', and 'user_nicename'. |
773 | * |
774 | * @since 3.6.0 |
775 | * |
776 | * @param array $search_columns Array of column names to be searched. |
777 | * @param string $search Text being searched. |
778 | * @param WP_User_Query $this The current WP_User_Query instance. |
779 | */ |
780 | $search_columns = apply_filters( 'user_search_columns', $search_columns, $search, $this ); |
781 |
|
782 | $this->query_where .= $this->get_search_sql( $search, $search_columns, $wild ); |
783 | } |
784 |
|
785 | if ( ! empty( $include ) ) { |
786 | // Sanitized earlier. |
787 | $ids = implode( ',', $include ); |
788 | $this->query_where .= " AND $wpdb->users.ID IN ($ids)"; |
789 | } elseif ( ! empty( $qv['exclude'] ) ) { |