CiviCRM Community Forums (archive)

I upgraded CiviCRM 1.9 to 2.0 and created a new contribution page.
The test-drive and live page returned following error:

Call to undefined function array_intersect_key()

The function array_intersect_key() is a PHP 5.1 function and will return an error if it is used in an earlier PHP version, See following bug result:
http://bugs.php.net/bug.php?id=31961


I found an easy fix and worked at least for me. I thought that it might be useful to post it here in case somebody else has the same problem.

I added the following function in ContributionBase.php

function array_intersect_key($arr1, $arr2) {
  $res = array();
  foreach($arr1 as $key=>$value) {
    if(array_key_exists($key, $arr2)) $res[$key] = $arr1[$key];
  }
  return $res;
}

The workaround can also be found at:
http://www.php.net/manual/en/function.array-intersect-key.php

chris

Currently I'm running some tests and till now the only error I got was the one in subject.
There are really some nice new features in version 2.0
I'm also very impressed by the installation.

But I better downgrade (rebuild) again to CiviCRM 1.9
My hosting company is on php version 5.0.4.

Thanks for the good work
Chris