Parameters

$modules

(array) An associative array of modules to test for.

• '...$0'
  (array) An associative array of module properties used during testing. One of either $function or $extension must be provided, or they will fail by default.
  • 'function'
    (string) Optional. A function name to test for the existence of.
  • 'extension'
    (string) Optional. An extension to check if is loaded in PHP.
  • 'constant'
    (string) Optional. A constant name to check for to verify an extension exists.
  • 'class'
    (string) Optional. A class name to check for to verify an extension exists.
  • 'required'
    (bool) Is this a required feature or not.
  • 'fallback_for'
    (string) Optional. The module this module replaces as a fallback.