diff --git a/src/collections_methods.c b/src/collections_methods.c
index 8091130..8a16098 100644
--- a/src/collections_methods.c
+++ b/src/collections_methods.c
@@ -3330,7 +3330,44 @@ PHP_METHOD(Collection, zip)
 
 PHP_METHOD(Collection, zipWithNext)
 {
-
+    zend_fcall_info fci;
+    zend_fcall_info_cache fcc;
+    ZEND_PARSE_PARAMETERS_START(0, 1)
+        Z_PARAM_OPTIONAL
+        Z_PARAM_FUNC(fci, fcc)
+    ZEND_PARSE_PARAMETERS_END();
+    zend_array* current = THIS_COLLECTION;
+    if (!HT_IS_PACKED(current)) {
+        ERR_NOT_PACKED();
+        RETURN_NULL();
+    }
+    zend_bool has_transform = EX_NUM_ARGS() == 1;
+    INIT_FCI(&fci, 2);
+    uint32_t num_elements = zend_hash_num_elements(current);
+    ARRAY_NEW(zipped, num_elements);
+    if (num_elements > 1) {
+        Bucket* start = current->arData;
+        uint32_t idx;
+        for (idx = 0; idx < num_elements - 1; ++idx) {
+            Bucket* bucket = start + idx;
+            if (has_transform) {
+                ZVAL_COPY_VALUE(&params[0], &bucket->val);
+                ZVAL_COPY_VALUE(&params[1], &(bucket + 1)->val);
+                zend_call_function(&fci, &fcc);
+            } else {
+                zend_object* obj = create_pair_obj();
+                Z_TRY_ADDREF(bucket->val);
+                Z_TRY_ADDREF((bucket + 1)->val);
+                pair_update_first(obj, &bucket->val);
+                pair_update_second(obj, &(bucket + 1)->val);
+                zval pair;
+                ZVAL_OBJ(&pair, obj);
+                ZVAL_COPY_VALUE(&retval, &pair);
+            }
+            zend_hash_next_index_insert(zipped, &retval);
+        }
+    }
+    RETVAL_NEW_COLLECTION(zipped);
 }
 
 PHP_METHOD(Pair, __construct)
diff --git a/tests/060-zip-with-next.phpt b/tests/060-zip-with-next.phpt
new file mode 100644
index 0000000..665ca35
--- /dev/null
+++ b/tests/060-zip-with-next.phpt
@@ -0,0 +1,29 @@
+--TEST--
+Test Collection::zipWithNext().
+--FILE--
+<?php
+$array = ['foo'];
+if (Collection::init($array)->zipWithNext()->toArray() != []) {
+    echo 'Collection::zipWithNext() failed.', PHP_EOL;
+}
+
+$array = ['a', 'b', 'c', 'd'];
+$collection = Collection::init($array);
+$array1 = [
+    new Pair('a', 'b'),
+    new Pair('b', 'c'),
+    new Pair('c', 'd')
+];
+if ($collection->zipWithNext()->toArray() != $array1) {
+    echo 'Collection::zipWithNext() failed.', PHP_EOL;
+}
+
+$transform = function ($v1, $v2) {
+    return $v1.$v2;
+};
+$array1 = ['ab', 'bc', 'cd'];
+if ($collection->zipWithNext($transform)->toArray() != $array1) {
+    echo 'Collection::zipWithNext() failed.', PHP_EOL;
+}
+?>
+--EXPECT--