Add notes about used functions for except() and only()

bocharsky-bw · May 7, 2016 · 66637b1 · 66637b1
1 parent 44d25af
commit 66637b1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -459,6 +459,8 @@ $a->end(); // 'c'
 
 ### except
 
+> Based on [array_diff_key()](http://php.net/manual/en/function.array-diff-key.php).
+
 Chunk of an array without given keys.
 
 ``` php
@@ -756,6 +758,8 @@ $a->toArray();      // [0 => 'a', 2 => 'c']
 
 ### only
 
+> Based on [array_intersect_key()](http://php.net/manual/en/function.array-intersect-key.php).
+
 Chunk of an array with only given keys.
 
 ``` php