Site Collection Report

Powershell to get al site collections name, url, ID, storage, SharePoint groups, all groups role, users from each group, users' email ID, primary owner, secondary owner, Created date, last modified date:

$rootSite = Get-SPSite http://test.sharepoint.com
$spWebApp = $rootSite.WebApplication

foreach($site in $spWebApp.Sites)
{
    foreach($sites in $site.RootWeb)
{

$web = $site.OpenWeb()
$groups = $web.sitegroups

foreach ($grp in $groups)
{
$groupName = $grp.name

$role = $grp.ROles




foreach ($user in $grp.users)
{
write-host $sites.title, "User " $user.UserLogin, "Group: " $groupName, $role  -foregroundcolor yellow

$sites.url + "$" + $sites.Title + "$" + $sites.ID + "$" + $Site.Usage.Storage + "$" + $groupName + "$" + $role + "$" + $user.UserLogin + "$" +  $user.Name + "$" +  $user.Email + "$" +  $Site.Owner.Name + "$" + $Site.Owner.Email + "$" + $Site.SecondaryContact.Name + "$" + $Site.SecondaryContact.Email + "$" + $sites.Created + "$" + $sites.lastitemmodifieddate  | out-file "E:\SiteCollectionreport.csv" -Append

}
}
}
$web.Dispose()
$site.Dispose()
}