{"id":2976,"date":"2026-10-22T10:00:00","date_gmt":"2026-10-22T07:00:00","guid":{"rendered":"https:\/\/narhost.com\/destek\/?p=2976"},"modified":"2026-10-22T10:00:00","modified_gmt":"2026-10-22T07:00:00","slug":"declaration-must-be-compatible-hatasi","status":"publish","type":"post","link":"https:\/\/narhost.com\/destek\/declaration-must-be-compatible-hatasi\/","title":{"rendered":"Declaration Must Be Compatible Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr (PHP 8 Sonras\u0131 WordPress)"},"content":{"rendered":"<p class=\"kb-dogrulama\">Son do\u011frulama: Ekim 2026 \u00b7 cPanel 136 test hesab\u0131nda denendi<\/p>\n<div id=\"hizli-cozum\" class=\"ai-box ai-box--cozum\">\n<p class=\"ai-box-title\">H\u0131zl\u0131 \u00e7\u00f6z\u00fcm<\/p>\n<p><strong>Declaration must be compatible<\/strong> hatas\u0131 (<code>Fatal error: Declaration of Sinif::metot() must be compatible with ...<\/code>), bir eklenti ya da teman\u0131n PHP 8 ile uyumsuz kod i\u00e7erdi\u011fini g\u00f6sterir. Hata metnindeki dosya yolu sorunlu eklentiyi s\u00f6yler.<\/p>\n<ol>\n<li>Hata metnindeki <code>wp-content\/plugins\/<\/code> ya da <code>wp-content\/themes\/<\/code> sonras\u0131ndaki klas\u00f6r ad\u0131n\u0131 not edin.<\/li>\n<li>O eklentiyi ya da temay\u0131 g\u00fcncelleyin; y\u00f6netim paneline giremiyorsan\u0131z klas\u00f6r\u00fcn\u00fcn ad\u0131n\u0131 de\u011fi\u015ftirerek devre d\u0131\u015f\u0131 b\u0131rak\u0131n.<\/li>\n<li>Acil durumda <strong>cPanel \u2192 Yaz\u0131l\u0131m \u2192 MultiPHP Y\u00f6neticisi<\/strong>&#8216;nden PHP s\u00fcr\u00fcm\u00fcn\u00fc ge\u00e7ici olarak bir alt s\u00fcr\u00fcme al\u0131n.<\/li>\n<li>G\u00fcncelleme yoksa eklentinin yerine g\u00fcncel bir alternatif kullan\u0131n ve PHP s\u00fcr\u00fcm\u00fcn\u00fc geri y\u00fckseltin.<\/li>\n<\/ol>\n<\/div>\n<table class=\"kb-uyg\">\n<tr>\n<th>Panel<\/th>\n<td>cPanel (MultiPHP Y\u00f6neticisi, Dosya Y\u00f6neticisi), WordPress y\u00f6netim paneli<\/td>\n<\/tr>\n<tr>\n<th>Sistem<\/th>\n<td>Payla\u015f\u0131ml\u0131 hosting, PHP 8.0 ve \u00fcst\u00fc<\/td>\n<\/tr>\n<tr>\n<th>Yetki<\/th>\n<td>cPanel kullan\u0131c\u0131s\u0131; WordPress y\u00f6neticisi<\/td>\n<\/tr>\n<tr>\n<th>Narhost \u00fcr\u00fcn\u00fc<\/th>\n<td><a href=\"https:\/\/narhost.com\/wordpress-hosting\" title=\"Narhost WordPress Hosting paketleri\">WordPress Hosting<\/a><\/td>\n<\/tr>\n<\/table>\n<div class=\"kb-once\">\n<p class=\"label\">Ba\u015flamadan \u00f6nce<\/p>\n<ul>\n<li>Hata metninin tamam\u0131n\u0131 kopyalay\u0131n; dosya yolu ve sat\u0131r numaras\u0131 \u00e7\u00f6z\u00fcm i\u00e7in gerekir.<\/li>\n<li>Sitenin ve veritaban\u0131n\u0131n yede\u011fini al\u0131n.<\/li>\n<li>Hatan\u0131n PHP s\u00fcr\u00fcm\u00fc de\u011fi\u015ftikten ya da bir g\u00fcncellemeden hemen sonra ba\u015flay\u0131p ba\u015flamad\u0131\u011f\u0131n\u0131 not edin.<\/li>\n<\/ul>\n<\/div>\n<h2>Declaration must be compatible hatas\u0131 neden olur<\/h2>\n<p>PHP&#8217;de bir s\u0131n\u0131f ba\u015fka bir s\u0131n\u0131ftan t\u00fcretildi\u011finde, \u00fcst s\u0131n\u0131ftaki bir metodu yeniden yazan alt s\u0131n\u0131f ayn\u0131 parametre ve d\u00f6n\u00fc\u015f t\u00fcr\u00fc kurallar\u0131na uymak zorundad\u0131r. PHP 7&#8217;de bu kurala uymayan kod \u00e7o\u011fu durumda yaln\u0131z uyar\u0131 \u00fcretiyordu. PHP 8.0 ile birlikte uyumsuz metot imzas\u0131 her durumda \u00f6l\u00fcmc\u00fcl hataya d\u00f6n\u00fc\u015ft\u00fc; karar\u0131n gerek\u00e7esi <a href=\"https:\/\/wiki.php.net\/rfc\/lsp_errors\" title=\"PHP RFC \u2014 uyumsuz metot imzalar\u0131nda her zaman \u00f6l\u00fcmc\u00fcl hata\" target=\"_blank\" rel=\"noopener\">PHP RFC sayfas\u0131nda<\/a>.<\/p>\n<p>Bu y\u00fczden declaration must be compatible hatas\u0131 \u00e7o\u011fu zaman PHP s\u00fcr\u00fcm\u00fc y\u00fckseltildikten sonra, uzun s\u00fcredir g\u00fcncellenmemi\u015f bir eklenti ya da temada ortaya \u00e7\u0131kar. WordPress \u00e7ekirde\u011fi ve g\u00fcncel eklentiler PHP 8 ile uyumludur; sorun neredeyse her zaman eski bir bile\u015fendedir.<\/p>\n<figure class=\"nh-sema\"><img src=\"https:\/\/narhost.com\/destek\/wp-content\/uploads\/2026\/10\/declaration-must-be-compatible-hatasi-sema-narhost.webp\" alt=\"declaration must be compatible \u00e7\u00f6z\u00fcm \u015femas\u0131 \u2014 hata yolu, g\u00fcncelleme, klas\u00f6r ad\u0131 ve PHP s\u00fcr\u00fcm\u00fc\" width=\"1200\" height=\"500\" loading=\"lazy\" decoding=\"async\"><figcaption>Hata yolundaki klas\u00f6r sorunlu bile\u015feni g\u00f6sterir; kal\u0131c\u0131 \u00e7\u00f6z\u00fcm g\u00fcncel s\u00fcr\u00fcmd\u00fcr.<\/figcaption><\/figure>\n<h2>Ad\u0131m ad\u0131m \u00e7\u00f6z\u00fcm<\/h2>\n<ol class=\"kb-adimlar\">\n<li><strong>Sorunlu bile\u015feni bulun.<\/strong> Hata metnindeki yolda <code>\/wp-content\/plugins\/eklenti-adi\/<\/code> ya da <code>\/wp-content\/themes\/tema-adi\/<\/code> b\u00f6l\u00fcm\u00fc hatan\u0131n kayna\u011f\u0131n\u0131 g\u00f6sterir. WordPress kritik hata e-postas\u0131 g\u00f6nderdiyse ayn\u0131 bilgi orada da yazar.<\/li>\n<li><strong>Y\u00f6netim paneline girebiliyorsan\u0131z g\u00fcncelleyin.<\/strong><strong>Eklentiler<\/strong> sayfas\u0131nda sorunlu eklentiyi g\u00fcncelleyin ya da devre d\u0131\u015f\u0131 b\u0131rak\u0131n. G\u00fcncelleme y\u00f6ntemi <a href=\"https:\/\/narhost.com\/destek\/sitenizi-guncel-tutun-wordpress-eklentileri-nasil-guncellenir\/\" title=\"WordPress Eklentileri Nas\u0131l G\u00fcncellenir \u2014 Narhost Destek Merkezi\">WordPress eklentileri nas\u0131l g\u00fcncellenir<\/a> kart\u0131nda.<\/li>\n<li><strong>Panele giremiyorsan\u0131z klas\u00f6r\u00fc yeniden adland\u0131r\u0131n.<\/strong><strong>cPanel \u2192 Dosyalar \u2192 Dosya Y\u00f6neticisi<\/strong>&#8216;nde <code>public_html\/wp-content\/plugins\/<\/code> klas\u00f6r\u00fcn\u00fc a\u00e7\u0131n, sorunlu eklentinin klas\u00f6r\u00fcne sa\u011f t\u0131klay\u0131p <strong>Yeniden Adland\u0131r<\/strong>&#8216;\u0131 se\u00e7in ve ad\u0131n sonuna <code>-kapali<\/code> ekleyin.<br \/>\n<figure class=\"kb-ekran\"><img decoding=\"async\" src=\"https:\/\/narhost.com\/destek\/wp-content\/uploads\/2026\/10\/declaration-must-be-compatible-hatasi-adim-2.webp\" alt=\"declaration must be compatible hatas\u0131nda eklenti klas\u00f6r\u00fcn\u00fc yeniden adland\u0131rmak i\u00e7in cPanel Dosya Y\u00f6neticisi\" width=\"1200\" height=\"833\" loading=\"lazy\"><figcaption>Eklenti klas\u00f6r\u00fc wp-content\/plugins alt\u0131nda yeniden adland\u0131r\u0131larak devre d\u0131\u015f\u0131 b\u0131rak\u0131l\u0131r.<\/figcaption><\/figure>\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: WordPress eklentiyi bulamaz ve devre d\u0131\u015f\u0131 sayar; site a\u00e7\u0131l\u0131r. Tema kaynakl\u0131ysa ayn\u0131 i\u015flem <code>wp-content\/themes\/<\/code> alt\u0131nda yap\u0131l\u0131r ve WordPress varsay\u0131lan temaya ge\u00e7er.<\/p>\n<\/li>\n<li><strong>Gerekirse PHP s\u00fcr\u00fcm\u00fcn\u00fc ge\u00e7ici d\u00fc\u015f\u00fcr\u00fcn.<\/strong> Eklentiyi hemen kapatam\u0131yorsan\u0131z <strong>cPanel \u2192 Yaz\u0131l\u0131m \u2192 MultiPHP Y\u00f6neticisi<\/strong>&#8216;nde alan ad\u0131n\u0131 i\u015faretleyip bir alt s\u00fcr\u00fcm\u00fc se\u00e7in ve <strong>Uygula<\/strong>&#8216;ya bas\u0131n. Ayr\u0131nt\u0131lar <a href=\"https:\/\/narhost.com\/destek\/cpanelde-php-surumu-nasil-degistirilir\/\" title=\"cPanel&#039;de PHP S\u00fcr\u00fcm\u00fc Nas\u0131l De\u011fi\u015ftirilir \u2014 Narhost Destek Merkezi\">cPanel&#8217;de PHP s\u00fcr\u00fcm\u00fc nas\u0131l de\u011fi\u015ftirilir<\/a> kart\u0131nda.<br \/>\n<figure class=\"kb-ekran\"><img decoding=\"async\" src=\"https:\/\/narhost.com\/destek\/wp-content\/uploads\/2026\/10\/declaration-must-be-compatible-hatasi-adim-1.webp\" alt=\"cPanel MultiPHP Y\u00f6neticisi ekran\u0131nda alan ad\u0131n\u0131n PHP s\u00fcr\u00fcm\u00fc\" width=\"1200\" height=\"638\" loading=\"lazy\"><figcaption>Alan ad\u0131 i\u015faretlenip listeden s\u00fcr\u00fcm se\u00e7ilir ve Uygula&#8217;ya bas\u0131l\u0131r.<\/figcaption><\/figure>\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: site eski s\u00fcr\u00fcmle a\u00e7\u0131l\u0131r. Bu ge\u00e7ici bir \u00f6nlemdir; deste\u011fi biten s\u00fcr\u00fcmler g\u00fcvenlik yamas\u0131 almaz.<\/p>\n<\/li>\n<li><strong>Kal\u0131c\u0131 \u00e7\u00f6z\u00fcm\u00fc uygulay\u0131n.<\/strong> Eklentinin g\u00fcncel s\u00fcr\u00fcm\u00fc yoksa ya da geli\u015ftiricisi b\u0131rakm\u0131\u015fsa yerine ayn\u0131 i\u015fi yapan g\u00fcncel bir eklenti kurun, eski klas\u00f6r\u00fc silin ve PHP s\u00fcr\u00fcm\u00fcn\u00fc yeniden y\u00fckseltin.<\/li>\n<\/ol>\n<div class=\"warn-box\">\n<p class=\"label\">Dikkat<\/p>\n<p>Eklenti dosyalar\u0131ndaki kodu elle d\u00fczeltmeyin. \u0130lk g\u00fcncellemede de\u011fi\u015fiklik silinir ve hata geri gelir; eklentinin ba\u015fka bir yerinde ayn\u0131 sorun olabilir. Kal\u0131c\u0131 \u00e7\u00f6z\u00fcm g\u00fcncel bir s\u00fcr\u00fcmd\u00fcr.<\/p>\n<\/div>\n<h2>Do\u011frulama<\/h2>\n<div class=\"success-box\">\n<p class=\"label\">Sonu\u00e7<\/p>\n<p>Site ve y\u00f6netim paneli hata vermeden a\u00e7\u0131l\u0131yor, <strong>Ara\u00e7lar \u2192 Site Sa\u011fl\u0131\u011f\u0131<\/strong> ekran\u0131nda PHP s\u00fcr\u00fcm\u00fc g\u00fcncel g\u00f6r\u00fcn\u00fcyor ve <code>wp-content\/debug.log<\/code> dosyas\u0131nda declaration must be compatible sat\u0131r\u0131 yeni kay\u0131t \u00fcretmiyorsa sorun giderilmi\u015ftir. Hata ay\u0131klama g\u00fcnl\u00fc\u011f\u00fcn\u00fcn a\u00e7\u0131lmas\u0131 <a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/debug\/debug-wordpress\/\" title=\"WordPress belgesi \u2014 WordPress&#039;te hata ay\u0131klama\" target=\"_blank\" rel=\"noopener\">WordPress belgesinde<\/a> anlat\u0131l\u0131r.<\/p>\n<\/div>\n<h2>H\u00e2l\u00e2 \u00e7\u00f6z\u00fclmediyse<\/h2>\n<ul>\n<li><strong>Ekranda yaln\u0131z &#8220;kritik bir hata olu\u015ftu&#8221; yaz\u0131yor.<\/strong> Ayr\u0131nt\u0131l\u0131 hata metnini g\u00f6rmek i\u00e7in <a href=\"https:\/\/narhost.com\/destek\/wordpress-kritik-hata-cozumu\/\" title=\"WordPress Kritik Hata \u00c7\u00f6z\u00fcm\u00fc \u2014 Narhost Destek Merkezi\">WordPress kritik hata \u00e7\u00f6z\u00fcm\u00fc<\/a> kart\u0131ndaki y\u00f6ntemi izleyin.<\/li>\n<li><strong>Hangi eklentinin sorunlu oldu\u011fu anla\u015f\u0131lm\u0131yor.<\/strong> Eklentileri s\u0131rayla kapatarak bulun; y\u00f6ntem <a href=\"https:\/\/narhost.com\/destek\/adim-adim-wordpresste-sorunlu-eklenti-nasil-bulunur\/\" title=\"WordPress&#039;te Sorunlu Eklenti Nas\u0131l Bulunur \u2014 Narhost Destek Merkezi\">sorunlu eklenti nas\u0131l bulunur<\/a> kart\u0131nda.<\/li>\n<li><strong>Hata bellek s\u0131n\u0131r\u0131 diyor.<\/strong> \u0130leti &#8220;Allowed memory size&#8221; ile ba\u015fl\u0131yorsa sorun farkl\u0131d\u0131r; <a href=\"https:\/\/narhost.com\/destek\/allowed-memory-size-exhausted-hatasi\/\" title=\"Allowed Memory Size Exhausted Hatas\u0131 \u2014 Narhost Destek Merkezi\">Allowed memory size exhausted<\/a> kart\u0131na bak\u0131n.<\/li>\n<\/ul>\n<div class=\"cta-box\">\n<p class=\"label\">Narhost deste\u011fi<\/p>\n<p>Talebe \u015funlar\u0131 ekleyin: alan ad\u0131, hata metninin tamam\u0131, sitenin PHP s\u00fcr\u00fcm\u00fc, hatadan \u00f6nce yap\u0131lan g\u00fcncelleme ya da s\u00fcr\u00fcm de\u011fi\u015fikli\u011fi.<\/p>\n<p><a class=\"cta-btn\" href=\"https:\/\/narhost.com\/submitticket.php\" title=\"Narhost destek talebi a\u00e7\">Destek talebi a\u00e7<\/a><\/div>\n<div class=\"kb-ilgili\">\n<p class=\"label\">Sonraki ad\u0131mlar<\/p>\n<ul>\n<li><a href=\"https:\/\/narhost.com\/blog\/php-8-2-destegi\/\" title=\"PHP 8.2 Deste\u011fi Bitiyor, WordPress Siteniz Hangi S\u00fcr\u00fcme Ge\u00e7meli \u2014 Narhost Blog\">PHP 8.2 deste\u011fi bitiyor, hangi s\u00fcr\u00fcme ge\u00e7ilmeli<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/cpanel-php-ini-ayarlari\/\" title=\"cPanel&#039;de php.ini Ayarlar\u0131 \u2014 Narhost Destek Merkezi\">cPanel&#8217;de php.ini ayarlar\u0131<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/olumun-beyaz-ekrani-wsod-wordpress-beyaz-sayfa-hatasi-nasil-duzeltilir\/\" title=\"WordPress Beyaz Sayfa Hatas\u0131 \u2014 Narhost Destek Merkezi\">WordPress beyaz sayfa hatas\u0131<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"kb-faq\">\n<h2>S\u0131k\u00e7a sorulan sorular<\/h2>\n<h3>Bu hata WordPress&#8217;in kendisinden mi kaynaklan\u0131r?<\/h3>\n<p>Hay\u0131r. WordPress \u00e7ekirde\u011fi PHP 8 ile uyumludur. Hata metnindeki dosya yolu neredeyse her zaman bir eklenti ya da tema klas\u00f6r\u00fcn\u00fc g\u00f6sterir; \u00e7\u00f6z\u00fcm o bile\u015feni g\u00fcncellemek ya da de\u011fi\u015ftirmektir.<\/p>\n<h3>PHP s\u00fcr\u00fcm\u00fcn\u00fc d\u00fc\u015f\u00fcrmek g\u00fcvenli mi?<\/h3>\n<p>K\u0131sa s\u00fcreli bir \u00f6nlem olarak sorun \u00e7\u0131karmaz, ama kal\u0131c\u0131 \u00e7\u00f6z\u00fcm de\u011fildir. Deste\u011fi biten PHP s\u00fcr\u00fcmleri g\u00fcvenlik yamas\u0131 almaz. Sorunlu eklentiyi d\u00fczelttikten sonra s\u00fcr\u00fcm\u00fc yeniden y\u00fckseltin.<\/p>\n<h3>Return type should be compatible uyar\u0131s\u0131 ayn\u0131 \u015fey mi?<\/h3>\n<p>Benzerdir ama daha hafiftir. PHP 8.1 ve sonras\u0131nda g\u00f6r\u00fclen bu ileti \u00e7o\u011fu zaman bir kullan\u0131mdan kald\u0131rma bildirimidir ve siteyi durdurmaz. Yine de eklentinin g\u00fcncel olmad\u0131\u011f\u0131n\u0131 g\u00f6sterir; g\u00fcncellemek iyi olur.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>PHP 8 sonras\u0131 WordPress&#8217;te Fatal error: Declaration must be compatible hatas\u0131n\u0131n nedeni ve \u00e7\u00f6z\u00fcm\u00fc: hata yolundan sorunlu eklentiyi bulma, g\u00fcncelleme ya da klas\u00f6r\u00fc yeniden adland\u0131rma, MultiPHP Y\u00f6neticisi&#8217;nde ge\u00e7ici s\u00fcr\u00fcm de\u011fi\u015fikli\u011fi.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,7],"tags":[],"class_list":["post-2976","post","type-post","status-publish","format-standard","hentry","category-web-hosting","category-wordpress-hosting"],"meta_box":[],"_links":{"self":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/2976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/comments?post=2976"}],"version-history":[{"count":1,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/2976\/revisions"}],"predecessor-version":[{"id":3031,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/2976\/revisions\/3031"}],"wp:attachment":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/media?parent=2976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/categories?post=2976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/tags?post=2976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}