<li>A SQL database system, <strong>one of</strong>:

<ul>

<li>MySQL 3.23 or above (MySQLi supported)</li>

<li>PostgreSQL 8.3+</li>

<li>SQLite 2.8.2+ (SQLite 3 is not supported)</li>

<li>Firebird 2.1+</li>

<p>Please remember that running any application on a development (unstable, e.g. a beta release) version of PHP can lead to strange/unexpected results which may appear to be bugs in the application. Therefore, we recommend you upgrade to the newest stable version of PHP before running phpBB3. If you are running a development version of PHP please check any bugs you find on a system running a stable release before submitting.</p>

<a name="phpsec"></a><h3>7.i. Notice on PHP security issues</h3>

acp_forums_normal_settings_append

===

* Location: adm/style/acp_forums.html

* Purpose: Add settings to forums

acp_main_actions_append

===

* Location: adm/style/acp_main.html

* Purpose: Add actions to the ACP main page below the cache purge action

acp_main_notice_after

===

* Location: adm/style/acp_main.html

* Purpose: Add notices or other blocks in the ACP below other configuration notices

acp_overall_footer_after

===

* Location: adm/style/overall_footer.html

* Purpose: Add content below the footer in the ACP

acp_overall_header_head_append

===

* Location: adm/style/overall_header.html

acp_simple_footer_after

===

* Location: adm/style/simple_footer.html

* Purpose: Add content below the simple footer in the ACP

acp_simple_header_head_append

===

* Location: adm/style/overall_header.html

acp_users_overview_options_append

===

* Location: adm/style/acp_users.html

* Purpose: Add options and settings on user overview page

forumlist_body_last_post_title_prepend

* Locations:

+ styles/prosilver/template/forumlist_body.html

+ styles/subsilver2/template/forumlist_body.html

* Purpose: Add content before the post title of the latest post in a forum on the forum list.

index_body_stat_blocks_before

* Locations:

+ styles/prosilver/template/index_body.html

+ styles/subsilver2/template/index_body.html

* Purpose: Add new statistic blocks above the Who Is Online and Board Statistics blocks

memberlist_body_username_append

* Locations:

+ styles/prosilver/template/memberlist_body.html

+ styles/subsilver2/template/memberlist_body.html

* Purpose: Add information after every username in the memberlist. Works in

all display modes (leader, group and normal memberlist).

* Locations:

+ styles/prosilver/template/memberlist_body.html

+ styles/subsilver2/template/memberlist_body.html

* Purpose: Add information before every username in the memberlist. Works in

all display modes (leader, group and normal memberlist).

* Locations:

+ styles/prosilver/template/memberlist_view.html

+ styles/subsilver2/template/memberlist_view.html

* Purpose: Add entries after the user statistics part of any user profile

memberlist_view_user_statistics_before

* Locations:

+ styles/prosilver/template/memberlist_view.html

+ styles/subsilver2/template/memberlist_view.html

* Purpose: Add entries before the user statistics part of any user profile

overall_footer_after

* Locations:

+ styles/prosilver/template/overall_footer.html

+ styles/subsilver2/template/overall_footer.html

* Purpose: Add content at the end of the file, directly prior to the `</body>` tag

overall_footer_breadcrumb_append

===

* Purpose: Add links to the list of breadcrumbs in the footer

overall_footer_copyright_append

* Locations:

+ styles/prosilver/template/overall_footer.html

+ styles/subsilver2/template/overall_footer.html

* Purpose: Add content after the copyright line (no new line by default), before the ACP link

overall_footer_copyright_prepend

* Locations:

+ styles/prosilver/template/overall_footer.html

+ styles/subsilver2/template/overall_footer.html

* Purpose: Add content before the copyright line

overall_header_breadcrumb_append

* Locations:

+ styles/prosilver/template/overall_header.html

+ styles/subsilver2/template/breadcrumbs.html

* Purpose: Add links to the list of breadcrumbs in the header

overall_header_head_append

* Locations:

+ styles/prosilver/template/overall_header.html

+ styles/subsilver2/template/overall_header.html

* Purpose: Add asset calls directly before the `</head>` tag

overall_header_navigation_append

===

* Purpose: Add links after the navigation links in the header

overall_header_navigation_prepend

===

* Purpose: Add links before the navigation links in the header

posting_editor_options_prepend

* Locations:

+ styles/prosilver/template/posting_editor.html

+ styles/prosilver/template/posting_body.html

* Purpose: Add posting options on the posting screen

simple_footer_after

===

* Purpose: Add content directly prior to the `</body>` tag of the simple footer

topiclist_row_prepend

+ styles/prosilver/template/viewforum_body.html

+ styles/subsilver2/template/search_results.html

+ styles/subsilver2/template/viewforum_body.html

* Purpose: Add content into topic rows (inside the elements containing topic titles)

topiclist_row_append

+ styles/prosilver/template/viewforum_body.html

+ styles/subsilver2/template/search_results.html

+ styles/subsilver2/template/viewforum_body.html

* Purpose: Add content into topic rows (inside the elements containing topic titles)

ucp_pm_viewmessage_custom_fields_after

===

* Purpose: Add data after the custom fields on the user profile when viewing

a private message

ucp_pm_viewmessage_custom_fields_before

===

* Purpose: Add data before the custom fields on the user profile when viewing

a private message

ucp_pm_viewmessage_print_head_append

===

* Purpose: Add asset calls directly before the `</head>` tag of the Print PM screen

ucp_prefs_personal_prepend

* Locations:

+ styles/prosilver/template/ucp_prefs_personal.html

+ styles/subsilver2/template/ucp_prefs_personal.html

* Purpose: Add user options to the top of the Edit Global Settings block

ucp_prefs_personal_append

* Locations:

+ styles/prosilver/template/ucp_prefs_personal.html

+ styles/subsilver2/template/ucp_prefs_personal.html

* Purpose: Add user options to the bottom of the Edit Global Settings block

ucp_prefs_post_prepend

* Locations:

+ styles/prosilver/template/ucp_prefs_post.html

+ styles/subsilver2/template/ucp_prefs_post.html

* Purpose: Add user options to the top of the Edit Posting Defaults block

ucp_prefs_post_append

* Locations:

+ styles/prosilver/template/ucp_prefs_post.html

+ styles/subsilver2/template/ucp_prefs_post.html

* Purpose: Add user options to the bottom of the Edit Posting Defaults block

ucp_prefs_view_radio_buttons_prepend

* Locations:

+ styles/prosilver/template/ucp_prefs_view.html

+ styles/subsilver2/template/ucp_prefs_view.html

* Purpose: Add options to the top of the radio buttons block of the Edit

Display Options screen

* Locations:

+ styles/prosilver/template/ucp_prefs_view.html

+ styles/subsilver2/template/ucp_prefs_view.html

* Purpose: Add options to the bottom of the radio buttons block of the Edit

Display Options screen

* Locations:

+ styles/prosilver/template/ucp_prefs_view.html

+ styles/subsilver2/template/ucp_prefs_view.html

* Purpose: Add options to the top of the drop-down lists block of the Edit

Display Options screen

* Locations:

+ styles/prosilver/template/ucp_prefs_view.html

+ styles/subsilver2/template/ucp_prefs_view.html

* Purpose: Add options to the bottom of the drop-down lists block of the Edit

Display Options screen

viewtopic_print_head_append

===

* Purpose: Add asset calls directly before the `</head>` tag of the Print Topic screen

viewtopic_body_footer_before

* Locations:

+ styles/prosilver/template/viewtopic_body.html

+ styles/subsilver2/template/viewtopic_body.html

* Purpose: Add content to the bottom of the View topic screen below the posts

and quick reply, directly before the jumpbox in Prosilver, breadcrumbs in

Subsilver2.

* Locations:

+ styles/prosilver/template/viewtopic_body.html

+ styles/subsilver2/template/viewtopic_body.html

* Purpose: Add post button to posts (next to edit, quote etc), at the end of

the list.

* Locations:

+ styles/prosilver/template/viewtopic_body.html

+ styles/subsilver2/template/viewtopic_body.html

* Purpose: Add post button to posts (next to edit, quote etc), at the start of

the list.

* Locations:

+ styles/prosilver/template/viewtopic_body.html

+ styles/subsilver2/template/viewtopic_body.html

* Purpose: Add data after the custom fields on the user profile when viewing

a post

* Locations:

+ styles/prosilver/template/viewtopic_body.html

+ styles/subsilver2/template/viewtopic_body.html

* Purpose: Add data before the custom fields on the user profile when viewing

a post

* Locations:

+ styles/prosilver/template/viewtopic_body.html

+ styles/subsilver2/template/viewtopic_body.html

* Purpose: Add content directly before the topic title link on the View topic screen