From 54a18e30f2e93124251616b6c27f1ea15af22dcc Mon Sep 17 00:00:00 2001
From: Nat Zimmermann <nat@razorcreations.com>
Date: Fri, 12 Aug 2016 10:35:50 +0100
Subject: [PATCH] Add support for checking if an array has multiple keys

---
 src/Illuminate/Support/Arr.php   | 30 ++++++++++++++++++------------
 tests/Support/SupportArrTest.php | 11 +++++++++++
 2 files changed, 29 insertions(+), 12 deletions(-)

diff --git a/src/Illuminate/Support/Arr.php b/src/Illuminate/Support/Arr.php
index 13aa89180675..d9b63d26e8c2 100755
--- a/src/Illuminate/Support/Arr.php
+++ b/src/Illuminate/Support/Arr.php
@@ -293,31 +293,37 @@ public static function get($array, $key, $default = null)
     }
 
     /**
-     * Check if an item exists in an array using "dot" notation.
+     * Check if an item or items exist in an array using "dot" notation.
      *
      * @param  \ArrayAccess|array  $array
-     * @param  string  $key
+     * @param  string|array  $keys
      * @return bool
      */
-    public static function has($array, $key)
+    public static function has($array, $keys)
     {
-        if (! $array) {
+        if (is_null($keys)) {
             return false;
         }
 
-        if (is_null($key)) {
+        $keys = (array) $keys;
+
+        if (! $array) {
             return false;
         }
 
-        if (static::exists($array, $key)) {
-            return true;
+        if ($keys === []) {
+            return false;
         }
 
-        foreach (explode('.', $key) as $segment) {
-            if (static::accessible($array) && static::exists($array, $segment)) {
-                $array = $array[$segment];
-            } else {
-                return false;
+        foreach ($keys as $key) {
+            $subKeyArray = $array;
+
+            foreach (explode('.', $key) as $segment) {
+                if (static::accessible($subKeyArray) && static::exists($subKeyArray, $segment)) {
+                    $subKeyArray = $subKeyArray[$segment];
+                } else {
+                    return false;
+                }
             }
         }
 
diff --git a/tests/Support/SupportArrTest.php b/tests/Support/SupportArrTest.php
index b695bf612e59..13198e824ca7 100644
--- a/tests/Support/SupportArrTest.php
+++ b/tests/Support/SupportArrTest.php
@@ -241,6 +241,17 @@ public function testHas()
 
         $this->assertFalse(Arr::has(null, null));
         $this->assertFalse(Arr::has([], null));
+
+        $array = ['products' => ['desk' => ['price' => 100]]];
+        $this->assertTrue(Arr::has($array, ['products.desk']));
+        $this->assertTrue(Arr::has($array, ['products.desk', 'products.desk.price']));
+        $this->assertTrue(Arr::has($array, ['products', 'products']));
+        $this->assertFalse(Arr::has($array, ['foo']));
+        $this->assertFalse(Arr::has($array, []));
+        $this->assertFalse(Arr::has($array, ['products.desk', 'products.price']));
+
+        $this->assertFalse(Arr::has([], [null]));
+        $this->assertFalse(Arr::has(null, [null]));
     }
 
     public function testIsAssoc()