diff --git a/rules-tests/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector/Fixture/demo_fixture.php.inc b/rules-tests/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector/Fixture/demo_fixture.php.inc
new file mode 100644
index 00000000000..0fe7c0f2f13
--- /dev/null
+++ b/rules-tests/Php81/Rector/FuncCall/NullToStrictIntPregSlitFuncCallLimitArgRector/Fixture/demo_fixture.php.inc
@@ -0,0 +1,61 @@
+<?php
+
+$output = "a  b\tc";
+$preg_match_matches = NULL;
+$preg_match_all_matches = NULL;
+$preg_replace_callback_array_count = NULL;
+var_dump([
+    'preg_filter' => preg_filter('/[a-z]+/', 'X', $output, NULL),
+    'preg_grep' => preg_grep('/^[a-z]+/', [$output, 'x'], NULL),
+    'preg_match' => preg_match('/^[a-z]+/', $output, $preg_match_matches, NULL, NULL),
+    'preg_match $matches' => $preg_match_matches,
+    'preg_match_all' => preg_match_all('/^[a-z]+/', $output, $preg_match_all_matches, NULL, NULL),
+    'preg_match_all $matches' => $preg_match_all_matches,
+    'preg_replace' => preg_replace('/[a-z]+/', 'X', $output, NULL),
+    'preg_replace_callback' => preg_replace_callback('/[a-z]+/', function($word) {
+        return $word;
+    }, $output, NULL),
+    'preg_replace_callback_array' => preg_replace_callback_array([
+        '~[a]+~i' => function ($match) {
+            return 'X';
+        },
+        '~[b]+~i' => function ($match) {
+            return 'Y';
+        },
+    ], $output, NULL, $preg_replace_callback_array_count, NULL),
+    'preg_split' => preg_split('/\s/', $output, NULL, PREG_SPLIT_NO_EMPTY),
+]);
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\Php81\Rector\FuncCall\NullToStrictIntPregSlitFuncCallLimitArgRector\Fixture;
+
+$output = "a  b\tc";
+$preg_match_matches = NULL;
+$preg_match_all_matches = NULL;
+$preg_replace_callback_array_count = NULL;
+var_dump([
+    'preg_filter' => preg_filter('/[a-z]+/', 'X', $output, 0),
+    'preg_grep' => preg_grep('/^[a-z]+/', [$output, 'x'], 0),
+    'preg_match' => preg_match('/^[a-z]+/', $output, $preg_match_matches, 0, 0),
+    'preg_match $matches' => $preg_match_matches,
+    'preg_match_all' => preg_match_all('/^[a-z]+/', $output, $preg_match_all_matches, 0, 0),
+    'preg_match_all $matches' => $preg_match_all_matches,
+    'preg_replace' => preg_replace('/[a-z]+/', 'X', $output, 0),
+    'preg_replace_callback' => preg_replace_callback('/[a-z]+/', function($word) {
+        return $word;
+    }, $output, 0),
+    'preg_replace_callback_array' => preg_replace_callback_array([
+        '~[a]+~i' => function ($match) {
+            return 'X';
+        },
+        '~[b]+~i' => function ($match) {
+            return 'Y';
+        }
+    ], $output, 0, $preg_replace_callback_array_count, 0),
+    'preg_split' => preg_split('/\s/', $output, 0, PREG_SPLIT_NO_EMPTY),
+]);
+
+?>