CiviCRM Community Forums (archive)

the "out of the box" civix search on 4.3 results in:

Fatal error: Declaration of CRM_Mycustomsearch::all() must be compatible with that of CRM_Contact_Form_Search_Interface::all()

when you try to use it.
Digging....

So the problem is that the interface for custom-searches changed between v4.2 and v4.3 (specifically https://fisheye2.atlassian.com/changelog/CiviCRM?cs=44025 ). We discussed and did some quick testing on the significance of this. It looks like:

 * Custom-search classes written with the new function signature (v4.3) will work with the old Interface.php (v4.2).
 * Custom-search classes written with the old function signature (v4.2) will produce errors when used with the new Interface.php (v4.3).

We drew this conclusion from some basic testing of PHP's class/interface handling. For example, this code runs without error:

// old style interface (missing the param)
interface Foo {
  function a();
}

// new style implementation (with the param)
class Bar implements Foo {
  function a($a = '') {
  }
}

but this code produces a fatal error:

// new style interface (with the param)
interface Foo {
  function a($a = '');
}

// old style implementation (missing the param)
class Bar implements Foo {
  function a() {
  }
}