Question

I am using a regular expression search to match up and replace some text. The text can span multiple lines (may or may not have line breaks).
Currently I have this:

 $regex = "\<\?php eval.*?\>"

Get-ChildItem -exclude *.bak | Where-Object {$_.Attributes -ne "Directory"} |ForEach-Object {
 $text = [string]::Join("`n", (Get-Content $_))
 $text -replace $RegEx ,"REPLACED"}

Answer 1

Try this:

$regex = New-Object Text.RegularExpressions.Regex "\<\?php eval.*?\>", ('singleline', 'multiline')

Get-ChildItem -exclude *.bak |
  Where-Object {!$_.PsIsContainer} |
  ForEach-Object {
     $text = (Get-Content $_.FullName) -join "`n"
     $regex.Replace($text, "REPLACED")
  }

A regular expression is explicitly created via New-Object so that options can be passed in.