Hi all,

I solved this with the use of puppet iteration functions:

class profile::software::apache (
  $php_version    = '7.4',
  $php_remove     = ['7.0‘, ‘7.3'],
  #...
) {
  # build a hash of PHP Versions with a value of either present or absent
  # and iterate over it with each
  $phpInstallHash = { $php_version => 'present' }
  #notify { "Value of phpRemove: ${php_remove}": }
  if $php_remove {
    # We have the array, use the map function to build remove hash
    $phpRemoveHash = $php_remove.map |$version| {
      { $version => 'absent' }
    }
    $phpFullHash = $phpInstallHash + $phpRemoveHash
  } else {
    $phpFullHash = $phpInstallHash
  }
  #notify { "phpHash to iterate over to install/uninstall: ${phpFullHash}": }

  #iterate over the result installing/uninstalling
  $phpFullHash.each | $php_version, $ensure_value | {
    ensure_packages([
      "php$php_version-xml",
      "php$php_version-zip",
      "php$php_version-curl",
      "php$php_version-mbstring",
      "libapache2-mod-php$php_version",
    ],
      {
        'ensure' => $ensure_value,
        require  => [Class['apt::update'],
          Apt::Source['source_php_sury'],
        ],
        notify   => Class['apache::service'],
      }
    )

  }
}

It works for me. I answered my StackOverflow question as well. Any thoughts?

As Garret pointed out, this for sure is not a recommended or usual way to do 
things. The need for this stems from my use of the Sury PHP repository, which 
offers several versions of PHP. I chose to use with 7.3 or 7.4 and get all 
important and security related from that tree, so it’s not like pinning a 
package to a fixed version.

regards,
Jochen
 

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