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[i18n-B] Accept-Language-Detection + Locale-Switcher (Server-side) #73

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opened 2026-06-04 10:42:14 +02:00 by greggy · 0 comments
greggy commented 2026-06-04 10:42:14 +02:00
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Sub-Issue B von #71 - Milestone Multi-Language MVP

Ziel

User-Sprache erkennen + manueller Wechsel per URL oder Cookie. Kein JS, kein Client-Routing.

Akzeptanzkriterien

  • Accept-Language parsen, match gegen (de, uk, ru, en), Fallback DE
  • URL-Param ?lang=uk setzt Locale + Cookie (30d, SameSite=Lax, Path=/, Secure)
  • Prioritaet: Cookie > URL > Accept-Language > DE
  • Switcher rendert 4 <a href="?lang=xx"> (Text DE/UK/RU/EN, Flaggen in D)
  • Aktive Locale mit aria-current="true"
  • PHPUnit: Cookie-Prioritaet, URL-Override, Accept-Language-Fallback, malformed Header
  • Integration-Test: vollstaendiger Request-Flow

DoR

  • Messbar | M (halber Tag) | Blockiert von A | Blockiert D, E

Out-of-Scope

  • Flaggen-Visual (D), Keyboard-Nav (E), DB-Persistenz > Cookie
## Parent Sub-Issue B von **#71** - Milestone **Multi-Language MVP** ## Ziel User-Sprache erkennen + manueller Wechsel per URL oder Cookie. Kein JS, kein Client-Routing. ## Akzeptanzkriterien - [ ] `Accept-Language` parsen, match gegen (de, uk, ru, en), Fallback DE - [ ] URL-Param `?lang=uk` setzt Locale + Cookie (30d, SameSite=Lax, Path=/, Secure) - [ ] Prioritaet: Cookie > URL > Accept-Language > DE - [ ] Switcher rendert 4 `<a href="?lang=xx">` (Text DE/UK/RU/EN, Flaggen in D) - [ ] Aktive Locale mit `aria-current="true"` - [ ] PHPUnit: Cookie-Prioritaet, URL-Override, Accept-Language-Fallback, malformed Header - [ ] Integration-Test: vollstaendiger Request-Flow ## DoR - [x] Messbar | **M** (halber Tag) | Blockiert von A | Blockiert D, E ## Out-of-Scope - Flaggen-Visual (D), Keyboard-Nav (E), DB-Persistenz > Cookie
greggy added this to the Multi-Language MVP milestone 2026-06-04 10:42:14 +02:00
greggy added the ReadyForDevtype/featurepriority/P1i18n labels 2026-06-04 10:42:14 +02:00
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accessibility
Accessibility / a11y (44x44px, ARIA, contrast)
 i18n
Internationalization / translation
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responsive
Responsive design (mobile/tablet/desktop)
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Reference: greggy/landingpage-haus-schleusingen#73