Severity: 8192
Message: Creation of dynamic property CI_URI::$config is deprecated
Filename: core/URI.php
Line Number: 101
Severity: 8192
Message: Creation of dynamic property CI_Router::$uri is deprecated
Filename: core/Router.php
Line Number: 127
Severity: 8192
Message: Creation of dynamic property index::$benchmark is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$hooks is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$config is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$log is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$utf8 is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$uri is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$exceptions is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$router is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$output is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$security is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$input is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$lang is deprecated
Filename: core/Controller.php
Line Number: 75
Severity: 8192
Message: Creation of dynamic property index::$load is deprecated
Filename: core/Controller.php
Line Number: 78
Severity: 8192
Message: Creation of dynamic property index::$db is deprecated
Filename: core/Loader.php
Line Number: 390
Severity: 8192
Message: Creation of dynamic property CI_DB_mysqli_driver::$autoinit is deprecated
Filename: database/DB_driver.php
Line Number: 371
Severity: 8192
Message: Return type of CI_Session_files_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 113
Severity: 8192
Message: Return type of CI_Session_files_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 280
Severity: 8192
Message: Return type of CI_Session_files_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 145
Severity: 8192
Message: Return type of CI_Session_files_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 223
Severity: 8192
Message: Return type of CI_Session_files_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 303
Severity: 8192
Message: Return type of CI_Session_files_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Filename: drivers/Session_files_driver.php
Line Number: 344
Severity: 8192
Message: Creation of dynamic property index::$session is deprecated
Filename: core/Loader.php
Line Number: 1290
Severity: 8192
Message: Creation of dynamic property index::$pagination is deprecated
Filename: core/Loader.php
Line Number: 1290
Severity: 8192
Message: Creation of dynamic property index::$email is deprecated
Filename: core/Loader.php
Line Number: 1290
Severity: 8192
Message: Creation of dynamic property index::$ders_model is deprecated
Filename: core/Loader.php
Line Number: 353
Severity: 8192
Message: Creation of dynamic property index::$bilgi_model is deprecated
Filename: core/Loader.php
Line Number: 353
Severity: 8192
Message: Creation of dynamic property CI_Loader::$data is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$benchmark is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$hooks is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$config is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$log is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$utf8 is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$uri is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$exceptions is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$router is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$output is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$security is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$input is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$lang is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$load is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$db is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$session is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$pagination is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$email is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$ders_model is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$bilgi_model is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property index::$makale_model is deprecated
Filename: core/Loader.php
Line Number: 353
Severity: 8192
Message: setcookie(): Passing null to parameter #7 ($httponly) of type bool is deprecated
Filename: core/Input.php
Line Number: 410
Severity: 8192
Message: Creation of dynamic property index::$yorum_model is deprecated
Filename: core/Loader.php
Line Number: 353
Severity: 8192
Message: Creation of dynamic property CI_Loader::$makale_model is deprecated
Filename: core/Loader.php
Line Number: 925
Severity: 8192
Message: Creation of dynamic property CI_Loader::$yorum_model is deprecated
Filename: core/Loader.php
Line Number: 925
HTML (HyperText Markup Language, Zengin Metin İşaretleme Dili), en kaba tanımıyla internette gezinmemizi sağlayan metin tabanlı bir dildir. HTML'nin en temel amacı, web sayfalarının düzgün ve kurallı bir şekilde tarayıcılar tarafından okunup, yorumlanmasını sağlamak ve aynı şekilde tarayıcıların karşımıza bunu bir görüntü olarak sunmasıdır. İnternette gördüğümüz bazı web sayfalarının kaynak kodlarına bakarsak HTML kurallarına uymadığını görebiliriz. Bu arada sitenizi kontrol etmek istiyorsanız böyle bir olanak mevcut. http://validator.w3.org/
Neden XHTML?
<html>
<head>
<title>HTML</title>
<body>
<h1>Bu nasıl HTML
<p>Hani paragraf
</body>
Yukarıdaki kod doğru bir şekilde çalışır çünkü web tarayıcıları eksik olan etiketleri siz yazmasanızda kendisi tamamlar. Ancak böyle bir yöntem kullanmak doğru değildir çünkü bazen hatalara yol açmaktadır. Sonuç böyle olunca ortaya XHTML fikri çıktı.
XHTML (Extensible HyperText Markup Language, Genişletilebilir Zengin Metin İşaretleme Dili), HTML ve XML'in birleşiminden oluşur. HTML'nin XML sözdizimine göre düzenlenmesidir. Bu yüzden XHTML'de kurallar katıdır.
XHTML Kuralları
1) XHTML DOCTYPE tanımlaması olmalı
XHTML belgesi kesinlikle XHTML DOCTYPE tanımlaması içermeli. DOCTYPE tanımlamalarına bakmak için tıklayın.
2) html etiketinde xmlns özelliği tanımlanmalı
<html xmlns="http://www.w3.org/1999/xhtml">
3) 4 etiket kesinlikle olmalı
Html, head, title ve body etiketleri kesinlikle belgenizde olmalı. Olması gereken minimum XHTML belgesi şöyle olmalı;
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Başlık</title>
</head>
<body>
......
</body>
</html>
4) İç içe etiketler muntazam şekilde kapatılmalı
XHTML'de iç içe elementler sırasıyla kapatılmalı
<b><i>Kalın ve italic yazı</i></b>
Önce "i" etiketi, sonra "b" etiketi kapatılmalıdır.
5) Açılan etiket mutlaka kapatılmalı
<p>Açılan etiketler kapatılmalı</p>
6) "br", "hr" vb. etiketler mutlaka kapatılmalı
HTML'de bu tarz etiketlerin kapatılması gerekmez ama XHTML'de zorunludur.
<br>, <hr>, <img ...>, <meta ...>, <input ...> vb. etiketleri kapatma şekli farklıdır.
Satır: <br />
Yatay çizgi: <hr />
Resim: <img src="mutlu.gif" alt="mutlu surat" />
7) Etiketler ve etiket özellikleri küçük harfle tanımlanmalı
<body>
<p>Etiketler ve width küçük harf</p>
<table width="100%">
</body>
8) Etiket özelliklerini tanımlarken tırnak kullanılmalı
<table width="100%">
9) Bazı etiket özelliklerinin kısaltılmaması gerekir
<input checked="checked">
<option selected="selected">
Ana Sayfa
html 
Paylaş
Oyla