Description
PrismSearch builds a custom inverted index for fast frontend search and provides a live AJAX search box through a simple shortcode.
Features
- Fast inverted-index based search.
- Frontend AJAX search shortcode.
- Search indexing for posts, pages and public custom post types.
- Indexing for selected public taxonomy terms.
- Frontend metadata display in live search results.
- Configurable NLP language for tokenization.
- Fuzzy typo matching fallback.
- Optional replacement for the default WordPress search results page.
- Search rate limiting for live search requests (50 requests per IP address per minute by default; configurable or disable with 0).
- Live index updates when selected content is saved, updated, trashed or deleted.
- Optional frontend.css loading for theme authors who want to write their own CSS.
- Optional Enter key redirect to the full WordPress search results page.
- Template overrides from your theme.
Supported NLP languages
PrismSearch includes NLP processors for the following language codes. The selected language is used for tokenization and search processing.
- English: en
- German: de
- French: fr
- Spanish: es
- Portuguese: pt
- Italian: it
- Dutch: nl
- Danish: da
- Swedish: sv
- Norwegian: no
- Finnish: fi
- Polish: pl
- Czech: cs
- Slovak: sk
- Slovenian: sl
- Croatian: hr
- Serbian: sr
- Bulgarian: bg
- Romanian: ro
- Hungarian: hu
- Greek: el
- Turkish: tr
- Russian: ru
- Ukrainian: uk
- Lithuanian: lt
- Latvian: lv
- Estonian: et
- Indonesian: id
- Vietnamese: vi
- Japanese: ja
- Chinese: zh
- Korean: ko
- Arabic: ar
- Persian: fa
- Hebrew: he
- Thai: th
Some CJK and script-based languages use basic normalization and token support. Test the selected language processor with your own content before production use.
Shortcode
Add the live search box anywhere with:
[prismsearch]
Optional shortcode attributes:
[prismsearch min_chars="3" limit="10" placeholder="Search..."]
Enable or disable Enter key redirect per shortcode:
[prismsearch enter_redirect="1"]
[prismsearch enter_redirect="0"]
Privacy and external services
PrismSearch performs indexing, tokenization and search locally inside WordPress. It does not send site content, search queries or user data to external services, and it does not load remote frontend or admin assets.
Included third-party libraries
PrismSearch includes Select2 4.1.0 for enhanced admin multi-select fields. Select2 is MIT licensed; the license file is included at assets/vendor/select2/LICENSE.md. The Select2 source project is available at https://github.com/select2/select2.
Templates and styling
PrismSearch loads its default frontend stylesheet unless disabled in the settings.
Developers can also disable the default stylesheet with:
add_filter( 'prismsearch_load_frontend_css', '__return_false' );
Template files can be overridden in your theme by placing files in:
template/prismsearch/
For example:
template/prismsearch/item.php
Installation
- Upload the
prismsearchfolder to the/wp-content/plugins/directory, or install the plugin ZIP through the WordPress Plugins screen. - Activate the plugin through the Plugins screen in WordPress.
- Go to Settings > PrismSearch.
- Select posts, pages, public custom post types and any taxonomy terms you want PrismSearch to index.
- Select frontend meta keys if you want to display metadata in live search results.
- Click Build Index.
- Add
[prismsearch]to a page, post, widget, block, or theme template.
After changing indexed content, taxonomy or NLP language settings, build the index again.
FAQ
-
Does PrismSearch replace the default WordPress search?
-
It can. Enable “Override default WordPress search” in the PrismSearch settings to use PrismSearch results on the regular WordPress
?s=search results page. -
What content can PrismSearch index?
-
PrismSearch indexes posts, pages, selected public custom post types and selected public taxonomy terms.
-
Can I display custom meta fields in live search results?
-
Yes. Select the fields under “Frontend meta keys” to include those values in frontend AJAX results. These fields are displayed only; they are not indexed for search.
-
Does PrismSearch support typo tolerance?
-
Yes. Enable fuzzy typo matching in the settings. Fuzzy matching runs as a fallback when normal search returns fewer results than the configured threshold.
-
What is the default live-search rate limit?
-
PrismSearch allows 50 frontend search requests per IP address per minute by default. Change this value in Settings > PrismSearch > Security, or set it to 0 to disable rate limiting.
-
Why do I need to build the index?
-
PrismSearch uses its own optimized search index. The index must be built after installation and rebuilt after changing indexed content or language settings.
-
Does PrismSearch update the index automatically?
-
Yes, if live index updates are enabled. The plugin can reindex selected content when it is saved, updated, trashed or deleted.
-
Can I disable the plugin frontend CSS?
-
Yes. Enable “Disable frontend.css” in the settings if you want to write your own CSS. Developers can also use the
prismsearch_load_frontend_cssfilter. -
Can Enter open the full search results page?
-
Yes. Enable “Redirect on Enter” in the settings, or use
enter_redirect="1"in the shortcode. -
Can I customize result templates?
-
Yes. Copy the plugin template files into your theme under
template/prismsearch/and edit them there.
Reviews
There are no reviews for this plugin.
Contributors & Developers
“PrismSearch” is open source software. The following people have contributed to this plugin.
Contributors
Translate “PrismSearch” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.3
- Enable indexing for all selected public post types, including public custom post types.
- Harden database table creation queries with prepared identifier placeholders and non-interpolated charset/collation handling.
- Improve attachment/inherit status handling for indexed content.
1.0.2
- Code cleanup and simplification.
1.0.1
- Review update.
1.0.0
- Initial release.