PHP header doesn't work
7250
Reference - What does this error mean in PHP?
33538
tags not working in php 5.3.1
41140
File not uploading PHP
155800
Apache is not interpreting .PHP files
82466
PHP – setcookie() not working
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How to fix "Headers already sent" error in PHP
135645
Replacement for drupal_add_http_header()
119264
PHP: Session not working
126479
PHP session seemingly not working
145841
How do you get PHP, Symlinks and __FILE__ to work together nicely?
98753
Force file download with php using header()
10225
Need help with PHP and MySQL
3069
how to use php with ini files
104682
Nginx location blocks don't apply to .php files inside them?
114543
Why does HTTP headers doesn't get created when I use Server.Transfer()?
141465
PHP headers already sent
93151
Php: can't assign a property value in declaration