SproutCMS

function iterableFirstKey()

Gets the first key of an iterable

• File: /sprout/Helpers/Sprout.php, line 868
• Namespace: Sprout\Helpers
• Class: Sprout, Static method

Usage

Arguments

1. iterable $iter
   

   An array or Traversable

Return value

• mixed
  

  The value or null if the iterable is emtpy

• null
  

  The value or null if the iterable is emtpy