diff --git a/src/Util/Arrays.php b/src/Util/Arrays.php
index 1cdf94a..60b8801 100644
--- a/src/Util/Arrays.php
+++ b/src/Util/Arrays.php
@@ -371,4 +371,40 @@ public static function partition(array $input, $partitionCount, $preserveKeys =
 
         return $partitions;
     }
+
+    /**
+     * Unsets all elements in the given $array specified by $keys
+     *
+     * @param array &$array The array containing the elements to unset.
+     * @param array $keys Array of keys to unset.
+     *
+     * @return void
+     */
+    public static function unsetAll(array &$array, array $keys)
+    {
+        foreach ($keys as $key) {
+            unset($array[$key]);
+        }
+    }
+
+    /**
+     * Convert all empty strings to null in the given array
+     *
+     * @param array &$array The array containing empty strings
+     *
+     * @return void
+     */
+    public static function nullifyEmptyStrings(array &$array)
+    {
+        $arrayCopy = $array;
+        foreach ($arrayCopy as $key => $value) {
+            if (!is_string($value)) {
+                continue;
+            }
+
+            if (trim($value) === '') {
+                $array[$key] = null;
+            }
+        }
+    }
 }
diff --git a/tests/Util/ArraysTest.php b/tests/Util/ArraysTest.php
index 377100f..914a36d 100644
--- a/tests/Util/ArraysTest.php
+++ b/tests/Util/ArraysTest.php
@@ -707,4 +707,29 @@ public function partition_nonBoolPreserveKeys()
     {
         A::partition(['a', 'b', 'c'], 3, 'not a bool');
     }
+
+    /**
+     * Verify basic behavior of unsetAll().
+     *
+     * @test
+     * @covers ::unsetAll
+     */
+    public function unsetAll()
+    {
+        $array = ['a', 'b', 'c'];
+        A::unsetAll($array, [0, 2]);
+        $this->assertSame([1 => 'b'], $array);
+    }
+
+    /**
+     * Verify basic behavior of nullifyEmptyStrings().
+     * @test
+     * @covers ::nullifyEmptyStrings
+     */
+    public function nullifyEmptyStrings()
+    {
+        $array = ['a' => '', 'b' => true, 'c' => "\n\t", 'd' => "\tstring with whitespace\n"];
+        A::nullifyEmptyStrings($array);
+        $this->assertSame(['a' => null, 'b' => true, 'c' => null, 'd' => "\tstring with whitespace\n"], $array);
+    }
 }