Bug: `yii\web\UrlRule` was unable to create URLs for rules containing unicode characters

framework/CHANGELOG.md

@@ -14,6 +14,7 @@ Yii Framework 2 Change Log
 - Bug #5682: The `asset` command would incorrectly combine CSS files when `UrlManager::linkAssets` is true (dmvslv)
 - Bug #5702: Parenthesis should be automatically added to `Validator::whenClient` to avoid js error (mdmunir, qiangxue)
 - Bug: Gii console command help information does not contain global options (qiangxue)
+- Bug: `yii\web\UrlRule` was unable to create URLs for rules containing unicode characters (samdark)
 - Enh #5223: Query builder now supports selecting sub-queries as columns (qiangxue)
 - Enh #5587: `json_encode` is now used with `JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE` where it makes sense, also
   it is now default for `Json::encode()` (samdark)

framework/web/UrlRule.php

@@ -185,7 +185,7 @@ class UrlRule extends Object implements UrlRuleInterface
                 if (isset($this->_routeParams[$name])) {
                     $tr2["<$name>"] = "(?P<$name>$pattern)";
                 } else {
-                    $this->_paramRules[$name] = $pattern === '[^\/]+' ? '' : "#^$pattern$#";
+                    $this->_paramRules[$name] = $pattern === '[^\/]+' ? '' : "#^$pattern$#u";
                 }
             }
         }

tests/unit/framework/web/UrlRuleTest.php

@@ -362,6 +362,16 @@ class UrlRuleTest extends TestCase
                     ['post/index', ['page' => 1, 'tag' => 'a', 'lang' => 'en'], 'http://en.example.com/post/a'],
                 ],
             ],
+            [
+                'with unicode',
+                [
+                    'pattern' => '/blog/search/<tag:[a-zA-Zа-яА-Я0-9\_\+\-]{1,255}>',
+                    'route' => 'blog/search',
+                ],
+                [
+                    ['blog/search', ['tag' => 'метра'], 'blog/search/%D0%BC%D0%B5%D1%82%D1%80%D0%B0'],
+                ],
+            ],
         ];
     }