From 71824136a8eeaccff0671d39f2d15504cf42a196 Mon Sep 17 00:00:00 2001
From: chadicus <chadwickgray@gmail.com>
Date: Sat, 13 Sep 2014 23:19:44 -0400
Subject: [PATCH 1/2] Add Util\Arrays::unsetAll

---
 src/Util/Arrays.php       | 15 +++++++++++++++
 tests/Util/ArraysTest.php | 13 +++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/src/Util/Arrays.php b/src/Util/Arrays.php
index 1cdf94a..65cb5f9 100644
--- a/src/Util/Arrays.php
+++ b/src/Util/Arrays.php
@@ -371,4 +371,19 @@ 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]);
+        }
+    }
 }
diff --git a/tests/Util/ArraysTest.php b/tests/Util/ArraysTest.php
index 377100f..a0a2bcd 100644
--- a/tests/Util/ArraysTest.php
+++ b/tests/Util/ArraysTest.php
@@ -707,4 +707,17 @@ 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);
+    }
 }

From a7801c4fc21af55371c882cc6d9a6841642c7694 Mon Sep 17 00:00:00 2001
From: chadicus <chadwickgray@gmail.com>
Date: Sat, 13 Sep 2014 23:23:12 -0400
Subject: [PATCH 2/2] Add Util\Arrays::nulifyEmptyStrings

---
 src/Util/Arrays.php       | 23 ++++++++++++++++++++++-
 tests/Util/ArraysTest.php | 14 +++++++++++++-
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/src/Util/Arrays.php b/src/Util/Arrays.php
index 65cb5f9..60b8801 100644
--- a/src/Util/Arrays.php
+++ b/src/Util/Arrays.php
@@ -375,7 +375,7 @@ public static function partition(array $input, $partitionCount, $preserveKeys =
     /**
      * Unsets all elements in the given $array specified by $keys
      *
-     * @param array $array The array containing the elements to unset.
+     * @param array &$array The array containing the elements to unset.
      * @param array $keys Array of keys to unset.
      *
      * @return void
@@ -386,4 +386,25 @@ public static function unsetAll(array &$array, array $keys)
             unset($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 a0a2bcd..914a36d 100644
--- a/tests/Util/ArraysTest.php
+++ b/tests/Util/ArraysTest.php
@@ -709,7 +709,7 @@ public function partition_nonBoolPreserveKeys()
     }
 
     /**
-     * Verify basic behavior of unsetAll.
+     * Verify basic behavior of unsetAll().
      *
      * @test
      * @covers ::unsetAll
@@ -720,4 +720,16 @@ public function unsetAll()
         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);
+    }
 }