Fatal error: Uncaught Error: Undefined constant "footer" in /home/demodetay/public_html/demo/e-kitaplar/app/view/static/uyegirisi.php:16 Stack trace: #0 /home/demodetay/public_html/demo/e-kitaplar/app/view/kategori.php(164): include() #1 /home/demodetay/public_html/demo/e-kitaplar/app/controller/kategori.php(47): require('/home/demodetay...') #2 /home/demodetay/public_html/demo/e-kitaplar/index.php(15): require('/home/demodetay...') #3 {main} thrown in /home/demodetay/public_html/demo/e-kitaplar/app/view/static/uyegirisi.php on line 16