Merge pull request #5372 from kenjis/fix-array_helper

fix: `dot_array_search()` unexpected array structure causes Type Error

Author: kenjis

system/Helpers/array_helper.php

@@ -53,6 +53,10 @@ function _array_search_dot(array $indexes, array $array)
             $answer = [];
 
             foreach ($array as $value) {
+                if (! is_array($value)) {
+                    return null;
+                }
+
                 $answer[] = _array_search_dot($indexes, $value);
             }
 

tests/system/Helpers/ArrayHelperTest.php

@@ -46,6 +46,18 @@ public function testArrayDotTooManyLevels()
         $this->assertSame(23, dot_array_search('foo.bar.baz', $data));
     }
 
+    /**
+     * @see https://github.com/codeigniter4/CodeIgniter4/issues/5369
+     */
+    public function testArrayDotValueIsListArray()
+    {
+        $data = [
+            'arr' => [1, 2, 3],
+        ];
+
+        $this->assertNull(dot_array_search('arr.*.index', $data));
+    }
+
     public function testArrayDotEscape()
     {
         $data = [