Precise Similar Topics

1.6.0 phpBB 3.3.9, 3.2.11
Mon Jan 16, 2023 6:18 pm
File size:
178.92 KiB
Validated for:
phpBB 3.3.9, 3.2.11
MD5 checksum:
Install directory:
1.5.0 phpBB 3.2.2, 3.1.12
Thu May 10, 2018 5:49 pm
File size:
172.76 KiB
Validated for:
phpBB 3.2.2, 3.1.12
MD5 checksum:
Install directory:
This extension will display a list of similar (related) topics at the bottom of the current topic's page. It matches keywords in the current topic's title with other topic titles in your board's forums and determines the most relevant and closely matched results. There are Admin Control Panel settings available to fine tune the display and performance of Precise Similar Topics, under the Extensions tab.

Overall winner of the 2010 "Summer of MODs" competition at

  • Displays a list of the most similar/relevant topics at the bottom of the current topic page.
  • Similar topics are sorted in order by their relevance.
  • Adjust how many Similar Topics to display per page.
  • Adjust the age-span of topics to display (ie: display similar topics from the past year only).
  • Enable or disable similar topics in each forum.
  • Exclude specific forums from being searched for similar topics.
  • Specify which forums can share similar topics with other forums.
  • A query caching option reduces SQL overhead on large boards.
  • Permission settings for users and groups determine who can view similar topics.
  • Forum privacy is maintained, topics from unauthorized and password-protected forums will not be shown to users who should not see them.
  • Multi-lingual support for stop-words (common words that are ignored).
  • Multiple languages are supported. View the pre-installed localizations.
  • Compatible with most styles, more added with every release.
  • Built-in compatibility with my "Topic Preview" extension.
  • Similar topic searches are not case sensitive.
  • Short words (less than 3 or 4 letters) are ignored
  • Stop-words are ignored (the, and, some, etc.) full list of stopwords.
  • Non-English boards use phpBB's custom ignore-word list as stop-words.
  • If a word is present in more than 50% of all topic titles, it is considered too common and is treated as a stop-word and is ignored.
Minimum Requirements:
Forum: Image Image (phpBB 3.1.x boards should use Precise Similar Topics v1.5.4)

Database: Image Image Image (SQLite, Oracle and MS SQL Server not supported)

pst_subsilver2.jpg pst_acp1.jpg pst_acp2.jpg pst_perm.jpg
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