Installs all basic Windows Features for IIS and disables the default IIS Pools and Site; Initial PHP Setup

IISInstallationDSC.ps1

$features = @("Web-Server",
    "Web-Mgmt-Tools",
    "web-Default-Doc",
    "Web-Dir-Browsing",
    "Web-Http-Errors",
    "Web-Static-Content",
    "Web-Http-Logging",
    "web-Stat-Compression",
    "web-Filtering",
    "web-CGI",
    "web-ISAPI-Ext",
    "web-ISAPI-Filter"
)

$dependsOn = @()

$features | ForEach-Object -Process {
    WindowsFeature $_ {
        Name   = $_
        Ensure = "Present" 
    }
    $dependsOn += "[WindowsFeature]$($_)"
}

@(
    ".NET v2.0" ,
    ".NET v2.0 Classic",
    ".NET v4.5",
    ".NET v4.5 Classic",
    "Classic .NET AppPool",
    "DefaultAppPool"
) | ForEach-Object -Process {
    xWebAppPool "Remove-$($_.ToString().Replace(" ","").Replace(".",""))"
    {
        Name      = $_
        Ensure    = "Absent"
        DependsOn = $dependsOn
    }
}

xWebSite RemoveDefaultWebSite
{
    Name         = "Default Web Site"
    PhysicalPath = "C:\inetpub\wwwroot"
    Ensure       = "Absent"
    DependsOn    = $dependsOn
}

Package vcRedist { 
    Path      = "$($SourceFolder)\VC_redist.x64.exe"
    ProductId = "{6c6356fe-cbfa-4944-9bed-a9e99f45cb7a}" 
    Name      = "Microsoft Visual C++ 2017 Redistributable (x64) - 14.11.25325" 
    Arguments = "/install /passive" 
} 

Archive PHP { 
    Path        = "$($SourceFolder)\php-7.1.12-nts-Win32-VC14-x64.zip"
    Destination = $phpDirectory
} 

File PhpWinCache {
    SourcePath      = "$($SourceFolder)\WinCache\php_wincache.dll"
    DestinationPath = "$($phpDirectory)\ext"
    Type            = "File"
    MatchSource     = $true
    DependsOn       = @("[Archive]PHP")
}

File PhpIni {
    SourcePath      = "$($SourceFolder)\php.ini"
    DestinationPath = "$($phpDirectory)\php.ini"
    MatchSource     = $true
    Force           = $true
    Checksum        = "SHA-512"
    Ensure          = "Present"
    DependsOn       = @("[Archive]PHP")
}
              
xIisModule PhpHandler { 
    Name        = "phpFastCgi" 
    Path        = "$($phpDirectory)\php-cgi.exe" 
    RequestPath = "*.php" 
    Verb        = "*" 
    Ensure      = "Present" 
    ModuleType  = "FastCgiModule"
    DependsOn   = @("[Package]vcRedist", "[Archive]PHP") + $dependsOn
} 

Script FixIisModule {
    GetScript = {
        return @{
            Result = ""
        }
    }
    SetScript = {
        Import-Module WebAdministration
        Set-WebHandler phpFastCgi -Modules FastCgiModule
    }
    TestScript = {
        Import-Module WebAdministration
        $fastCgi = Get-WebHandler phpFastCgi
        return $fastCgi.Modules -eq "FastCgiModule"
    }
    DependsOn = "[xIisModule]PhpHandler"
}

        
Environment PathPhp { 
    Name      = "Path" 
    Value     = ";$($phpDirectory)" 
    Ensure    = "Present" 
    Path      = $true 
    DependsOn = "[Archive]PHP" 
}

Good question - I really can't remember. I created this setup for a very restricted environment and (maybe) was not allowed to download the msi file.