{"id":4053,"date":"2023-12-15T09:09:38","date_gmt":"2023-12-15T06:09:38","guid":{"rendered":"https:\/\/blog.inetmar.com\/?p=4053"},"modified":"2024-07-27T16:07:14","modified_gmt":"2024-07-27T13:07:14","slug":"warning-session_start-function-session-start-cannot-send-session-cookie-headers-already-sent-by-hatasi-cozumu","status":"publish","type":"post","link":"https:\/\/www.inetmar.com\/blog\/warning-session_start-function-session-start-cannot-send-session-cookie-headers-already-sent-by-hatasi-cozumu\/","title":{"rendered":"Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc"},"content":{"rendered":"

Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by<\/strong> hatas\u0131, genellikle PHP<\/a>‘de session_start()<\/code> fonksiyonu \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda veya HTTP ba\u015fl\u0131klar\u0131 g\u00f6nderildi\u011finde meydana gelir, ancak bu i\u015flemlerden \u00f6nce sayfada bir \u00e7\u0131kt\u0131 g\u00f6nderildi\u011finde ortaya \u00e7\u0131kar. Bu hata, “headers already sent”<\/strong> hatas\u0131 olarak da bilinir.<\/p>\n

Bu hatan\u0131n nedenleri aras\u0131nda \u015funlar bulunabilir:<\/p>\n

    \n
  1. Bo\u015fluk, HTML, veya metin:<\/strong> PHP dosyas\u0131n\u0131n en \u00fcst\u00fcnde bo\u015fluk, HTML veya metin (echo, print, vb.) bulunmas\u0131.<\/li>\n
  2. UTF-8 BOM (Byte Order Mark):<\/strong> Baz\u0131 metin d\u00fczenleyiciler UTF-8 BOM karakterini otomatik olarak ekler ve bu da bu hataya neden olabilir.<\/li>\n
  3. \u0130lgili Dosya veya K\u00fct\u00fcphanelerde Sorun:<\/strong> E\u011fer ba\u015fka bir dosya veya k\u00fct\u00fcphane, headers g\u00f6ndermeden \u00f6nce bir \u00e7\u0131kt\u0131 veriyorsa bu hata meydana gelebilir.<\/li>\n<\/ol>\n

    Bu hatay\u0131 \u00e7\u00f6zmek i\u00e7in a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 izleyebilirsiniz:<\/p>\n

    1. Dosya Ba\u015flang\u0131c\u0131n\u0131 Kontrol Etme<\/h4>\n

    PHP dosyas\u0131n\u0131n ba\u015flang\u0131c\u0131nda bo\u015fluk, HTML etiketleri veya herhangi bir \u00e7\u0131kt\u0131 olmad\u0131\u011f\u0131ndan emin olun. Bo\u015f sat\u0131rlar, bo\u015fluklar veya herhangi bir \u00e7\u0131kt\u0131 (echo, print, vb.) session_start()<\/code> fonksiyonundan \u00f6nce yer almamal\u0131d\u0131r.session_start()<\/code> fonksiyonu 1.sat\u0131rda olmal\u0131d\u0131r.<\/p>\n

    2. UTF-8 BOM Karakterini Kald\u0131rma<\/h4>\n

    E\u011fer metin d\u00fczenleyiciniz UTF-8 BOM karakterini otomatik olarak ekliyorsa, dosyay\u0131 farkl\u0131 bir d\u00fczenleyici ile a\u00e7\u0131p bu karakteri kald\u0131r\u0131n.<\/strong><\/p>\n

    3. Ba\u015fka Dosyalar\u0131 Kontrol Etme<\/h4>\n

    Ba\u015fka dosyalar\u0131n (include<\/code> veya require<\/code> ile dahil edilen dosyalar, k\u00fct\u00fcphaneler vb.) headers g\u00f6ndermeden \u00f6nce bir \u00e7\u0131kt\u0131 verip vermedi\u011fini kontrol edin. Bu dosyalarda da ayn\u0131 kurallar ge\u00e7erlidir.<\/p>\n

    4. PHP Fonksiyonlar\u0131n\u0131 Kullanma<\/h4>\n

    header()<\/code> veya setcookie()<\/code> gibi fonksiyonlar\u0131, sayfa \u00e7\u0131kt\u0131s\u0131 g\u00f6nderilmeden \u00f6nce \u00e7a\u011f\u0131rmak \u00f6nemlidir. Bu fonksiyonlar, headers g\u00f6nderildikten sonra \u00e7a\u011fr\u0131l\u0131rsa hata verebilir.<\/strong><\/p>\n

    Yukar\u0131daki ad\u0131mlar\u0131 takip ederek genellikle “Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by’ hatas\u0131n\u0131 gidermek m\u00fcmk\u00fcnd\u00fcr. Ancak sorun hala devam ediyorsa, kodunuzu daha detayl\u0131 bir \u015fekilde incelemeniz gerekebilir.<\/strong><\/em><\/p>\n

    \nDomain transfer<\/a> i\u015flemlerinde \u0130ntermar garantisi ile alan ad\u0131n\u0131z\u0131 g\u00fcvenli \u015fekilde transfer edin!<\/p>\n","protected":false},"excerpt":{"rendered":"

    Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by hatas\u0131, genellikle PHP‘de session_start() fonksiyonu \u00e7a\u011fr\u0131ld\u0131\u011f\u0131nda veya HTTP ba\u015fl\u0131klar\u0131 g\u00f6nderildi\u011finde meydana gelir, ancak bu i\u015flemlerden \u00f6nce sayfada bir \u00e7\u0131kt\u0131 g\u00f6nderildi\u011finde ortaya \u00e7\u0131kar. Bu...<\/p>\n","protected":false},"author":2,"featured_media":4055,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-4053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/posts\/4053","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/comments?post=4053"}],"version-history":[{"count":10,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/posts\/4053\/revisions"}],"predecessor-version":[{"id":9499,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/posts\/4053\/revisions\/9499"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/media\/4055"}],"wp:attachment":[{"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/media?parent=4053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/categories?post=4053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.inetmar.com\/blog\/wp-json\/wp\/v2\/tags?post=4053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}