# Download the latest version of PHP and return the download file location.
Function Get-LatestPHPVersion() {
param(
[System.IO.DirectoryInfo]$OutputFolder = 'D:\Temp',
[int]$MajorVersion = 7,
[int]$MinorVersion = 1,
[int]$CompilerVersion = 14,
[string]$BitVersion = 'x64' # x64 or x86
)
$Site = 'http://windows.php.net'
$WindowsPHPDownloads = (Invoke-WebRequest -Uri $Site/download/).Links
If ($LatestPHPVersion = $WindowsPHPDownloads | Where-Object {$_.href -match "php-$MajorVersion.$MinorVersion.(\d+)-nts-Win32-VC$CompilerVersion-$BitVersion.zip"}) {
$Link = [uri]"$Site$($LatestPHPVersion.href)"
$OutputFile = "$OutputFolder\$($Link.Segments[-1])"
Invoke-WebRequest -Uri $Link -Method Get -OutFile $OutputFile -PassThru | Out-Null
Return $OutputFile
}
Else { Return $null }
}
# Your existing installation of PHP.
$PHPFolder = 'C:\PHP'
# The temporary location for the new version of PHP to be extracted to.
$TempPHPLocation = 'D:\TEMP\PHP'
# Where the backups of the existing installation of PHP will be copied to (as a .zip)
$BackupLocation = "D:\TEMP"
If (Test-Path $PHPFolder\php.exe) {
# Get current PHP version so we can name the backup file.
$CurrentPHPVersionOutput = & $PHPFolder\php.exe --% -v
$PHPVersionReg = [regex] '\d\.\d\.\d+'
$CurrentPHPVersion = $PHPVersionReg.Match($CurrentPHPVersionOutput).Value
# Backup the existing installation of PHP
Write-Output "Backing up existing installation from `"$PHPFolder`" to `"$BackupLocation\PHP-$CurrentPHPVersion-NTS-x64$(Get-Date -Format "yyyMMdd").zip`""
Compress-Archive -Path $PHPFolder -DestinationPath "$BackupLocation\PHP-$CurrentPHPVersion-NTS-x64-$(Get-Date -Format "yyyMMdd").zip" -CompressionLevel Optimal -Force
}
# Download the latest version of PHP - this is always the non-thread-safe version. If you need something different, change the function.
Write-Output "Downloading latest version of PHP...."
#$NewPHPVersionArchive = Get-LatestPHPVersion -MajorVersion 5 -MinorVersion 6 -CompilerVersion 11 -BitVersion 'x86'
$NewPHPVersionArchive = Get-LatestPHPVersion -MajorVersion 7 -MinorVersion 1 # default is VC14 x64
# If the download was successful, expand the zip file to the temporary location.
If ($NewPHPVersionArchive) {
Expand-Archive -Path $NewPHPVersionArchive -DestinationPath $TempPHPLocation -Verbose
}
Else { # IF the download fails, don't continue.
Write-Error "No link from http://windows.php.net/ matched the desired version of PHP." -ErrorAction Stop
}
# Get the files from the new installation of PHP
$Source = @(Get-ChildItem -Path $TempPHPLocation -Recurse)
# Get the files from the existing installation of PHP - could be empty so force an array using @()
$Destination = @(Get-ChildItem -Path $PHPFolder -Recurse)
# Compare the lists of files to see what is different in each.
# We do this since some files might be manually installed - we need these in the new version.
$Differences = Compare-Object -ReferenceObject $Source -DifferenceObject $Destination
# We're always going to be short of files such as php.ini so this is always copied from the existing version to the new version.
Write-Output "Copying missing files to new PHP version..."
Foreach ($Item in $Differences) {
If ($Item.SideIndicator -eq '=>') {
# Copy the missing item to the relative path in the new location.
Copy-Item -Path $Item.InputObject.FullName -Destination $($Item.InputObject.FullName.Replace($PHPFolder, $TempPHPLocation)) -Verbose
}
Else {
# If there's a new file in the new version that wasn't in the old version, let the console know.
Write-Warning "$($Item.InputObject.FullName) is a new file in the latest PHP version."
}
}
# Stop the W3SVC so there's no in-use versions of the CGI module.
Write-Warning "Stopping World Wide Web Publishing Service"
Stop-Service w3svc
# Copy all of the files from the new version of PHP to the target folder.
# We don't delete anything first in order to avoid issues with files not picked up in differences!
Write-Output "Copying new PHP version..."
Get-ChildItem -Path $TempPHPLocation -Recurse | Move-Item -Destination $PHPFolder -Force
# Start the W3SVC again so sites are available again.
Start-Service w3svc
Write-Output "Done."
