Calling flush() when output buffering is enabled causes output to be
duplicated. Besides phpBB enabling output buffering for gzip compression,
output buffering may be enabled externally to phpBB via output_handler
or output_buffering directives in php.ini.
Use ob_get_level to determine whether output buffering is active and
call ob_flush in that case.
PHPBB3-10191
Output buffering may be enabled via various approaches, among them:
* output_buffering in php.ini;
* output_handler in php.ini enables output_buffering;
* ob_start call.
ob_get_level allows us to query php runtime for the actual output buffering
status.
PHPBB3-10188
* develop-olympus:
[ticket/10170] Fix broken recaptcha verification host.
[ticket/10170] Include www in hostname in language strings.
[ticket/10170] Update language entries
[ticket/10170] reCaptcha API has been moved.
* bantu/ticket/10170:
[ticket/10170] Fix broken recaptcha verification host.
[ticket/10170] Include www in hostname in language strings.
[ticket/10170] Update language entries
[ticket/10170] reCaptcha API has been moved.
* develop-olympus:
[ticket/9999] SEARCH_USER_POSTS is also used on viewtopic. Move to common.
[ticket/9999] Remove broken and unused L_FORUM_FOLDER_ALT variable.
L_FORUM_FOLDER_ALT was supposed to be a language variable but the language
variable is never looked up but directly passed as L_FORUM_FOLDER_ALT instead.
Also, the expected functionality is correctly implemented by
FORUM_FOLDER_IMG_ALT.
PHPBB3-9999
* develop-olympus:
[ticket/10003] Delete EOL at EOF for the benefit of 3.0 modifications.
[ticket/10003] Ported 1802b9ff92 to db_tools.
[ticket/10003] Ported 5553cfc2ed to db_tools.
[ticket/10003] Ported 023760c8b2 to db_tools.
[ticket/10003] Ported 54c22ae52a to db_tools.
[ticket/10003] Ported 96a30afcca to db_tools.
[ticket/10003] Ported d7d96223e7 to db_tools.
* ticket/p/10003:
[ticket/10003] Delete EOL at EOF for the benefit of 3.0 modifications.
[ticket/10003] Ported 1802b9ff92 to db_tools.
[ticket/10003] Ported 5553cfc2ed to db_tools.
[ticket/10003] Ported 023760c8b2 to db_tools.
[ticket/10003] Ported 54c22ae52a to db_tools.
[ticket/10003] Ported 96a30afcca to db_tools.
[ticket/10003] Ported d7d96223e7 to db_tools.
Template executor interface defines a template executor object.
It is an object which can execute (i.e. display/render) a template.
Currently there are two implementations:
* phpbb_template_executor_include includes php code from a file.
* phpbb_template_executor_eval eval's php code.
PHPBB3-9726
phpBB 3.1 will not provide the option to store templates in the database.
This commit removes code that handles templates stored in database
from the template engine.
PHPBB3-9726
