Extend the request class with helpers for reading server vars (server())
and HTTP request headers (header()). Refactor the existing code base
to make use of these helpers, make $_SERVER a deactivated super global.
Also introduce an is_ajax() method, which checks the X-Requested-With
header for the value 'XMLHttpRequest', which is sent by JavaScript
libraries, such as jQuery.
PHPBB3-9716
* develop-olympus:
[ticket/217] Use positive assertions in tests.
[ticket/217] Silence errors in tests, not code.
[ticket/217] Use positive parameter statement for bbcode_init()
[ticket/217] Adjust patch, add tests
[ticket/217] Multiline [url] not converted
This commit also ports all ascraeus tests to the new format.
Conflicts:
tests/all_tests.php
tests/network/all_tests.php
tests/request/all_tests.php
tests/request/request_var.php
tests/template/templates/includephp.html
Closing tags converted using Oleg's script.
remove-php-end-tags.py -a .
Trailing newlines added using the following where $ext is file extension.
find . -type f -name "*.$ext" -print | xargs printf "e %s\nw\n" | ed -s;
Extensions: php, css, html, js, xml.
PHPBB3-9556
