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Die Nachricht wirkt bedrohlich: Da steht die eigene Domain, eine bekannte E-Mail-Adresse, vielleicht sogar ein Ablaufdatum. Alles klingt echt. Entsprechend gross ist die Unsicherheit. 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Sie prägt, wie dein Projekt wahrgenommen wird, welche Zielgruppe du erreichst und wie klar dein Auftritt positioniert ist. 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Damit wurden alle Websites auf die Version PHP 8.3 umgestellt, für die du im \u003Ca href=\"https:\u002F\u002Fmy.cyon.ch\u002Ftools\u002Fphp\u002Fversions\" target=\"_self\">my.cyon\u003C\u002Fa> unter dem Menüpunkt «Erweitert» > \u003Ca href=\"https:\u002F\u002Fmy.cyon.ch\u002Ftools\u002Fphp\u002Fversions\" target=\"_self\">«PHP-Versionsmanager»\u003C\u002Fa> die Option «Standard» ausgewählt hast.\u003C\u002Fp>\u003Cdiv class=\"callout\">\u003Cp>Beachte dass wir am \u003Cb>31.03.2026\u003C\u002Fb> die Versionen \u003Cb>PHP 7.1\u003C\u002Fb>, \u003Cb>PHP 7.2\u003C\u002Fb> und \u003Cb>PHP 7.3\u003C\u002Fb> auf all unseren Servern deaktivieren werden. Hast du noch eine dieser Versionen im Einsatz, so wurdest du per E-Mail darüber informiert. Bitte aktualisiere bereits jetzt die betroffenen Websites und stelle auf eine aktuelle PHP-Version um.\u003C\u002Fp>\u003C\u002Fdiv>\u003Ch2 id=\"Ist-mein-CMS-mit-PHP-83-kompatibel-n9Owx\">Ist mein CMS mit PHP 8.3 kompatibel?\u003C\u002Fh2>\u003Cp>Die beliebtesten Content-Management-Systeme wie WordPress, Joomla, Contao, TYPO3 und Drupal sind in den aktuellen Versionen alle kompatibel mit PHP 8.3. Nicht auszuschliessen ist jedoch, dass bestimmte Plugins\u002FErweiterungen nicht mit PHP 8.3 kompatibel sind.\u003C\u002Fp>\u003Ch2 id=\"Mgliche-Stolpersteine-beim-Upgrade-auf-PHP-83-i2s8Q\">Mögliche Stolpersteine beim Upgrade auf PHP 8.3?\u003C\u002Fh2>\u003Cp>Einige wenige Änderungen in PHP 8.3 sind inkompatibel mit früheren Versionen, sodass bestehender Code zwangsläufig mit der neuen Version neu getestet und in den betroffenen Punkten angepasst werden muss. Alle Inkompatibilitäten, die PHP 8.3 mit sich bringt, findest du auf der offiziellen \u003Ca href=\"https:\u002F\u002Fwww.php.net\u002Fmanual\u002Fde\u002Fmigration83.incompatible.php\" target=\"_self\">PHP-Website\u003C\u002Fa>. Mit dem Tool \u003Ca href=\"https:\u002F\u002Fgithub.com\u002Fphan\u002Fphan\" target=\"_self\">phan\u003C\u002Fa> oder \u003Ca href=\"https:\u002F\u002Fgithub.com\u002Fphpstan\u002Fphpstan\" target=\"_self\">phpstan\u003C\u002Fa> kann überprüft werden, ob dein Code mit PHP 8.3 kompatibel ist.\u003C\u002Fp>\u003Ch2 id=\"Meine-Website-funktioniert-mit-PHP-83-nicht-mehr-Was-kann-ich-tun-BeNk0\">Meine Website funktioniert mit PHP 8.3 nicht mehr. Was kann ich tun?\u003C\u002Fh2>\u003Cp>Die bisherige Standardversion PHP 7.4 wird dir noch bis \u003Cstrong>Ende Februar 2027\u003C\u002Fstrong> zur Verfügung stehen. Um PHP 7.4 weiterhin zu nutzen, so kannst du diese manuell über die .htaccess-Datei deiner Website einstellen. Wir beschreiben das Vorgehen im Artikel \u003Ca href=\"https:\u002F\u002Fwww.cyon.ch\u002Fsupport\u002Fa\u002Fphp-version-eines-verzeichnisses-andern#php-version-direkt-in-der-htaccess-datei-hinterlegen\" target=\"_self\">«PHP-Version eines Verzeichnisses ändern»\u003C\u002Fa> im Abschnitt \u003Ca href=\"https:\u002F\u002Fwww.cyon.ch\u002Fsupport\u002Fa\u002Fphp-version-eines-verzeichnisses-andern#php-version-direkt-in-der-htaccess-datei-hinterlegen\" target=\"_self\">«PHP-Version direkt in der .htaccess-Datei hinterlegen»\u003C\u002Fa>.\u003C\u002Fp>\u003Cp>Beachte dass nicht aktuelle Applikationen sehr anfällig auf Malware-Befall sind und somit ein hohes Sicherheitsrisiko darstellen. Bitte aktualisieren deshalb möglichst bald betroffene Websites und stelle sicher dass diese künftig mit einer aktuellen PHP-Version kompatibel sind. \u003Cstrong>Ab Ende Februar 2027\u003C\u002Fstrong> wird die Unterstützung für PHP 7.4 und PHP 8.0 endgültig beendet. Bei Fragen zur Aktualisierung deiner Website wende dich bitte an deinen technischen Kontakt oder an die Person\u002FAgentur, die deine Website betreut.\u003C\u002Fp>","[\"5b43771f0428630abc0bd975\",\"5b4377612c7d3a099f2e534f\"]","[\"5eb2b59a042863474d1a3961\",\"5c76b06004286350d0886d4c\",\"5ea836352c7d3a5ea54a0dfd\",\"5e1dc5c804286364bc93dcc3\",\"5cb737d20428631d263c400a\"]","intern_table","Wir haben im Frühjahr 2025 die Standardversion von PHP auf unseren Servern angepasst. Damit wurden alle Websites auf die Version PHP 8.3 umgestellt, für die du im my.cyon unter dem Menüpunkt «Erweitert» > «PHP-Versionsmanager» die Option «Standard»…",false,[422,426,430,434,438],{"helpscoutSlug":423,"helpscoutName":424,"excerpt":425},"anzeigen-der-php-version","Anzeigen der PHP-Version","Vermutest du, dass für eine Website die falsche PHP-Version hinterlegt ist und möchtest herausfinden, welche Version effektiv für das Verzeichnis gilt? Wir beschreiben, wie die PHP-Version über eine phpinfo-Seite ermittelt werden kann.Wie du eine…",{"helpscoutSlug":427,"helpscoutName":428,"excerpt":429},"vererbung-von-php-versionen","Vererbung von PHP-Versionen","Wunderst du dich, warum die PHP-Version, welche du im PHP-Versionsmanager im my.cyon eingestellt hast, nicht greift? Dann hat dies wohl mit der etwas speziellen Vererbung unter LiteSpeed zu tun, was wir mit diesem Artikel erklären möchten. Befindest…",{"helpscoutSlug":431,"helpscoutName":432,"excerpt":433},"php-versionsmanager","PHP-Versionsmanager","Mit dem PHP-Versionsmanager hast du die Möglichkeit, die PHP-Version einer Website oder eines bestimmten Ordners bequem über dein my.cyon-Konto zu ändern. Die zur Auswahl stehenden PHP-Versionen haben wir im Artikel «Verfügbarkeit einer PHP-Version»…",{"helpscoutSlug":435,"helpscoutName":436,"excerpt":437},"php-version-eines-verzeichnisses-andern","PHP-Version eines Verzeichnisses ändern","Möchtest du zum Testen die PHP-Version einer Website ändern oder soll diese gleich für alle Installationen angepasst werden? In den meisten Fällen kann dies bequem über den PHP-Versionsmanager im my.cyon erledigt werden. In diesem Artikel…",{"helpscoutSlug":439,"helpscoutName":440,"excerpt":441},"verfugbarkeit-einer-php-version","Verfügbarkeit einer PHP-Version","Zurzeit stehen folgende PHP-Versionen auf unseren Servern zur Verfügung. Die einzelnen Versionen können mindestens bis zum Datum der offiziellen Unterstützung durch die PHP Group über das my.cyon aktiviert werden gemäss «PHP-Version eines…",[443,446],{"helpscoutSlug":444,"helpscoutName":445},"312website-cms","312_website: CMS",{"helpscoutSlug":447,"helpscoutName":448},"315website-technische-fragen-zum-webhosting","315_website: Technische Fragen zum Webhosting",[450,484,518],{"id":451,"uri":452,"slug":453,"title":454,"enabled":105,"typeHandle":455,"sectionHandle":456,"__typename":457,"color":458,"textRich":459,"buttonSimple":460,"singleImage":471},"868","component-preview\u002Fe-mail-programm-konfigurieren","e-mail-programm-konfigurieren","E-Mail-Programm konfigurieren","ctaServices","callToActions","ctaServices_Entry","butterfly","\u003Cp>\u003Cstrong>Unser E-Mail-Zauberer führt dich durch den Einrichtungsprozess: \u003C\u002Fstrong>Verwalte deine E-Mail-Konten ganz bequem über das E-Mail-Programm deiner Wahl. Mit unserem Einrichtungsassistenten gelingt dir dies ganz einfach.\u003C\u002Fp>",{"label":461,"linkField":462},"E-Mail-Zauberer starten",{"__typename":98,"type":99,"label":12,"link":463,"url":464,"urlSuffix":12,"entry":465},"\u003Ca href=\"http:\u002F\u002Flocalhost:3000\u002Fsupport\u002Fmailwizard\">E-Mail Zauberer\u003C\u002Fa>","http:\u002F\u002Flocalhost:3000\u002Fsupport\u002Fmailwizard",{"id":466,"uri":467,"slug":468,"title":263,"enabled":105,"typeHandle":469,"sectionHandle":469,"__typename":470},"5940","support\u002Fmailwizard","mailwizard","mailWizard","mailWizard_Entry",[472],{"id":473,"url":474,"mediumUrl":475,"smallUrl":476,"originalUrl":477,"width":478,"height":479,"title":480,"alt":12,"kind":481,"extension":482,"caption":12,"nameTags":483},"869","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FServices\u002F_default\u002F869\u002FBildschirmfoto-2026-01-18-um-15.30.17.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FServices\u002F_medium\u002F869\u002FBildschirmfoto-2026-01-18-um-15.30.17.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FServices\u002F_small\u002F869\u002FBildschirmfoto-2026-01-18-um-15.30.17.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FServices\u002FBildschirmfoto-2026-01-18-um-15.30.17.png",1128,1124,"Bildschirmfoto 2026 01 18 um 15 30 17","image","png",[],{"id":485,"uri":486,"slug":487,"title":488,"enabled":105,"typeHandle":455,"sectionHandle":456,"__typename":457,"color":458,"textRich":489,"buttonSimple":490,"singleImage":494},"942","component-preview\u002Fwir-migrieren-dein-projekt-kostenlos","wir-migrieren-dein-projekt-kostenlos","Stressfrei Website & E-Mail umziehen lassen","\u003Cp>Unser Umzugsteam begleitet dich beim Wechsel zu cyon – Schritt für Schritt.\u003C\u002Fp>",{"label":491,"linkField":492},"Jetzt ohne Doppelkosten wechseln",{"__typename":98,"type":99,"label":12,"link":209,"url":210,"urlSuffix":12,"entry":493},{"id":212,"uri":110,"slug":213,"title":109,"enabled":105,"typeHandle":106,"sectionHandle":107,"__typename":89},[495],{"id":496,"url":497,"mediumUrl":498,"smallUrl":499,"originalUrl":500,"width":501,"height":501,"title":502,"alt":17,"kind":481,"extension":482,"caption":12,"nameTags":503},"776","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_default\u002F776\u002Fcommon-cta.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_medium\u002F776\u002Fcommon-cta.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_small\u002F776\u002Fcommon-cta.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002Fcommon-cta.png",393,"Common cta",[504,512],{"id":505,"title":506,"fullName":506,"role":507,"desktopX":508,"desktopY":509,"mobileX":510,"mobileY":511},"1925","Scharon","Customer Support",30,65,10,70,{"id":513,"title":514,"fullName":514,"role":507,"desktopX":515,"desktopY":516,"mobileX":517,"mobileY":517},"1926","Gabriel",67,60,50,{"id":519,"uri":520,"slug":521,"title":522,"enabled":105,"typeHandle":523,"sectionHandle":456,"__typename":524,"color":73,"textRich":525,"buttonSimple":526},"876","component-preview\u002Fimmer-auf-dem-laufenden-bleiben","immer-auf-dem-laufenden-bleiben","Immer auf dem Laufenden bleiben","ctaTextOnly","ctaTextOnly_Entry","\u003Cp>Tipps, Tools & Insights für deine Webprojekte.\u003C\u002Fp>",{"label":527,"linkField":528},"Jetzt Newsletter abonnieren",{"__typename":98,"type":116,"label":12,"link":529,"url":530,"urlSuffix":12,"entry":12},"\u003Ca href=\"https:\u002F\u002Fmailchi.mp\u002Fcyon\u002Fcyon-newsletter\">mailchi.mp\u002Fcyon\u002Fcyon-newsletter\u003C\u002Fa>","https:\u002F\u002Fmailchi.mp\u002Fcyon\u002Fcyon-newsletter",[532,631],{"id":533,"uri":534,"slug":535,"title":536,"enabled":105,"typeHandle":537,"sectionHandle":538,"__typename":539,"sectionHeader":540,"supportContactMethods":546},"4433","component-preview\u002Fkontakt","kontakt","Du brauchst persönliche Unterstützung?","supportContactSection","globalComponents","supportContactSection_Entry",{"iconSelect":541,"sectionLabel":255,"align":542,"color":543,"subtitle":544,"description":12,"backgroundImage":545},"headset","center","orange","Wähle den für dich passenden Kanal",[],[547,579,601],{"__typename":548,"title":549,"buttonIcon":550,"buttonDescription":551,"contentType":550,"contentTitle":552,"contentDescription":553,"contentButton":554,"image":560},"supportContactMethodStandard_Entry","E-Mail","mail","Verfügbar bis 17 Uhr","Persönliche Hilfe via E-Mail","\u003Cp>Verfügbar von Montag bis Freitag von 09:00 bis 17:00 Uhr. Wir beantworten deine E-Mails innert maximal 24 Stunden - und meist viel schneller.\u003C\u002Fp>",{"label":555,"linkField":556},"mail@cyon.ch",{"__typename":98,"type":557,"label":12,"link":558,"url":559,"urlSuffix":12,"entry":12},"email","\u003Ca href=\"mailto:mail@cyon.ch\">mail@cyon.ch\u003C\u002Fa>","mailto:mail@cyon.ch",[561],{"id":562,"url":563,"mediumUrl":564,"smallUrl":565,"originalUrl":566,"width":567,"height":568,"title":569,"alt":17,"kind":481,"extension":482,"caption":12,"nameTags":570},"742","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_default\u002F742\u002Fcommon-support.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_medium\u002F742\u002Fcommon-support.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_small\u002F742\u002Fcommon-support.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002Fcommon-support.png",840,558,"Common support",[571,577],{"id":572,"title":506,"fullName":506,"role":573,"desktopX":574,"desktopY":575,"mobileX":576,"mobileY":516},"1585","Customer Care Specialist",25,55,8,{"id":578,"title":514,"fullName":514,"role":573,"desktopX":515,"desktopY":516,"mobileX":517,"mobileY":517},"1586",{"__typename":548,"title":580,"buttonIcon":581,"buttonDescription":551,"contentType":581,"contentTitle":582,"contentDescription":583,"contentButton":584,"image":590},"Anruf","phone","Persönlicher Telefon-Support","\u003Cp>Rufe uns unter +41 61 588 15 15 an. Unsere Expertinnen und Experten helfen dir persönlich & direkt weiter. Verfügbar von 09:00 bis 12:00 Uhr und von 13:30 bis 17:00 Uhr.\u003C\u002Fp>",{"label":585,"linkField":586},"+41 61 588 15 15",{"__typename":98,"type":587,"label":12,"link":588,"url":589,"urlSuffix":12,"entry":12},"tel","\u003Ca href=\"tel:+41-61-588-15-15\">+41 61 588 15 15\u003C\u002Fa>","tel:+41-61-588-15-15",[591],{"id":592,"url":593,"mediumUrl":594,"smallUrl":595,"originalUrl":596,"width":597,"height":598,"title":599,"alt":12,"kind":481,"extension":482,"caption":12,"nameTags":600},"881","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_default\u002F881\u002FBildschirmfoto-2026-01-18-um-16.21.14.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_medium\u002F881\u002FBildschirmfoto-2026-01-18-um-16.21.14.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002F_small\u002F881\u002FBildschirmfoto-2026-01-18-um-16.21.14.webp","https:\u002F\u002Fcms.production-edge.cyon.ch\u002Ffiles\u002Fimages\u002FTeam\u002FBildschirmfoto-2026-01-18-um-16.21.14.png",906,918,"Bildschirmfoto 2026 01 18 um 16 21 14",[],{"__typename":602,"title":603,"buttonIcon":604,"buttonDescription":551,"emergencyFacts":605,"emergencyButton":621,"emergencyFaqEntries":626},"supportContactMethodEmergency_Entry","Notfall-Service","flame",[606,609,612,615,618],{"title":607,"description":608},"Verfügbarkeit","\u003Cp>365 Tage im Jahr, 24 Stunden am Tag\u003C\u002Fp>",{"title":610,"description":611},"Garantierte Reaktionszeit","\u003Cp>60 Minuten\u003C\u002Fp>",{"title":613,"description":614},"Kosten (inkl. erste 30 Minuten)","\u003Cp>CHF 250.00\u003C\u002Fp>",{"title":616,"description":617},"Je weitere angefangene 30 Minute","\u003Cp>CHF 100.00\u003C\u002Fp>",{"title":619,"description":620},"Alarmierung","\u003Cp>Via my.cyon\u003C\u002Fp>",{"label":622,"linkField":623},"Jetzt Notfall-Auftrag auslösen",{"__typename":98,"type":116,"label":12,"link":624,"url":625,"urlSuffix":12,"entry":12},"\u003Ca href=\"https:\u002F\u002Fmy.cyon.ch\u002Fsupport\u002Findex\u002Femergency\">my.cyon.ch\u002Fsupport\u002Findex\u002Femergency\u003C\u002Fa>","https:\u002F\u002Fmy.cyon.ch\u002Fsupport\u002Findex\u002Femergency",[627,630],{"title":628,"textRich":629},"Was ist der Notfall Service?","\u003Cp>Der Notfall Service bietet dir rund um die Uhr Unterstützung bei dringenden technischen Problemen mit deinen Diensten.\u003C\u002Fp>",{"title":628,"textRich":629},{"id":632,"uri":633,"slug":634,"title":635,"enabled":105,"typeHandle":636,"sectionHandle":538,"__typename":637,"sectionHeader":638,"leftBlock":642,"rightBlock":643},"4547","component-preview\u002Fstatusmeldungen","statusmeldungen","Statusmeldungen","statusMessagesSection","statusMessagesSection_Entry",{"iconSelect":639,"sectionLabel":635,"align":542,"color":166,"subtitle":640,"description":12,"backgroundImage":641},"trending-up","Übersicht über unsere Systeme",[],"\u003Ch3>Statusmeldungen\u003C\u002Fh3>\u003Cul>\u003Cli>Unser Systemstatus ist aktuell stabil.\u003C\u002Fli>\u003Cli>Geplante Wartungsarbeiten am 15. Juli 2024 von 02:00 bis 04:00 Uhr.\u003C\u002Fli>\u003Cli>Es gibt derzeit keine bekannten Störungen.\u003C\u002Fli>\u003C\u002Ful>","\u003Ch3>\u003Cstrong>Wichtige Hinweise\u003C\u002Fstrong>\u003C\u002Fh3>\u003Cul>\u003Cli>Bitte überprüfe regelmässig unseren Status-Feed für aktuelle Informationen.\u003C\u002Fli>\u003Cli>Bei dringenden Problemen kontaktiere unseren Support.\u003C\u002Fli>\u003C\u002Ful>"]