cache_users() - Retrieve info for user lists to prevent multiple queries by get_userdata()

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Description

Retrieve info for user lists to prevent multiple queries by get_userdata()

Usage

cache_users( $user_ids );

Parameters

$user_ids: ( array ) required – User ID numbers list

Returns

void

Source

File name: wordpress/wp-includes/pluggable.php
Lines: 1 to 19 of 19

function cache_users( $user_ids ) {
  global $wpdb;

  $clean = _get_non_cached_ids( $user_ids, 'users' );

  if ( empty( $clean ) )
    return;

  $list = implode( ',', $clean );

  $users = $wpdb->get_results( "SELECT * FROM $wpdb->users WHERE ID IN ($list)" );

  $ids = array();
  foreach ( $users as $user ) {
    update_user_caches( $user );
    $ids[] = $user->ID;
  }
  update_meta_cache( 'user', $ids );
}

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