Filters the columns to search in a WP_User_Query search.

Description

The default columns depend on the search term, and include ‘ID’, ‘user_login’, ‘user_email’, ‘user_url’, ‘user_nicename’, and ‘display_name’.

Parameters

$search_columnsstring[]

Array of column names to be searched.

$searchstring

Text being searched.

$queryWP_User_Query

The current WP_User_Query instance.

More Information

The user_search_columns filter is used to determine which user fields in the database are used when performing a search on user information.

When the ‘user_search_columns’ filter is called, it is passed three parameters: an array of fields to search, the search term, WP_User_Query object

<pre>add_filter( 'user_search_columns', 'filter_function_name', 10, 3 );

function filter_function_name( $search_columns, $search, $wp_user_query ) {
// Alter $search_columns to include the fields you want to search on
return $search_columns;
}

Where ‘filter_function_name’ is the function WordPress should call when the filter is run. Note that the filter function must return a value after it is finished processing or the search terms will be empty.

filter_function_name should be unique function name. It cannot match any other function name already declared

Source

$search_columns = apply_filters( 'user_search_columns', $search_columns, $search, $this );

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