Powershell : Get count of site collections in Webapplication

param($Site,$FilePath)

   

Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue

   

function GenerateAllSitecollectionsCountInWebapplication ($url)

{

    write-host "Extracting the count of site collections in web application....." -foregroundcolor black

    try

      {

         $Site=Get-SPSite $url        

         $spWebApp = $Site.WebApplication

         write-host Total count in $url is   $Site.WebApplication.Sites.Count -foregroundcolor red

      }

   catch

      {

          write-host "Unable to Extract Sitecollection count .."  -foregroundcolor red

          break

      }

} 

GenerateAllSitecollectionsCountInWebapplication -Url "www.yoursite.com"