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function getadminuserid(){
global $wpdb;
//Get all users in the DB
$wp_user_search = $wpdb->get_results("SELECT ID, display_name FROM $wpdb->users ORDER BY ID");
//Blank array
$adminArray = array();
//Loop through all users
foreach ( $wp_user_search as $userid ) {
//Current user ID we are looping through
$curID = $userid->ID;
//Grab the user info of current ID
$curuser = get_userdata($curID);
//Current user level
$user_level = $curuser->user_level;
//Only look for admins
if($user_level >= 8){//levels 8, 9 and 10 are admin
//Push user ID into array
$adminArray[] = $curID;
}
}
return $adminArray;
}