From 8c73fc8027a7293e81c0b2e8dc2674fe34f1eb59 Mon Sep 17 00:00:00 2001
From: Nikita Popov <nikita.ppv@gmail.com>
Date: Fri, 12 Jan 2018 18:30:22 +0100
Subject: [PATCH] Fixed bug #75653

---
 NEWS                                   |  1 +
 ext/standard/array.c                   |  2 +-
 ext/standard/tests/array/bug75653.phpt | 20 ++++++++++++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 ext/standard/tests/array/bug75653.phpt

diff --git a/NEWS b/NEWS
index 21037c1506..b3095be866 100644
--- a/NEWS
+++ b/NEWS
@@ -51,6 +51,7 @@ PHP                                                                        NEWS
 
 - Standard:
    . Fixed bug #75781 (substr_count incorrect result). (Laruence)
+   . Fixed bug #75653 (array_values don't work on empty array). (Nikita)
 
 - Zip:
   . Display headers (buildtime) and library (runtime) versions in phpinfo
diff --git a/ext/standard/array.c b/ext/standard/array.c
index 3a55333a76..91ffe08f7d 100644
--- a/ext/standard/array.c
+++ b/ext/standard/array.c
@@ -4028,7 +4028,7 @@ PHP_FUNCTION(array_values)
 
 	/* Return empty input as is */
 	arrlen = zend_hash_num_elements(arrval);
-	if (!arrlen) {
+	if (!arrlen && arrval->nNextFreeElement == arrlen) {
 		RETURN_ZVAL(input, 1, 0);
 	}
 
diff --git a/ext/standard/tests/array/bug75653.phpt b/ext/standard/tests/array/bug75653.phpt
new file mode 100644
index 0000000000..d11c1e0c75
--- /dev/null
+++ b/ext/standard/tests/array/bug75653.phpt
@@ -0,0 +1,20 @@
+--TEST--
+Bug #75653: array_values don't work on empty array
+--FILE--
+<?php
+
+$array[] = 'data1';
+unset($array[0]);
+$array = array_values($array);
+$array[] = 'data2';
+$array[] = 'data3';
+var_dump($array);
+
+?>
+--EXPECT--
+array(2) {
+  [0]=>
+  string(5) "data2"
+  [1]=>
+  string(5) "data3"
+}
-- 
2.40.0