Sphider-plus version 4.2021b - The PHP Search Engine

All required information.

[ Change Log Summary ]


- Actual release:    4.2021b

- Former versions:

          Version 4.2021a

          Version 3.2020d       Version 3.2020c

          Version 3.2020b       Version 3.2020a

          Version 3.2019c

          Version 3.2019b       Version 3.2019a

          Version 3.2018b       Version 3.2018a

          Version 3.2017b        Version 3.2017a


          Version 3.2016d        Version 3.2016c

          Version 3.2016b        Version 3.2016a


          Version 3.2015e        Version 3.2014c

          Version 3.2015d        Version 3.2014b

          Version 3.2015c        Version 3.2014a

          Version 3.2015b        Version 3.2013b

          Version 3.2015a        Version 3.2013a



- Older versions:


          Version 2.9          Version 1.9

          Version 2.8          Version 1.8

          Version 2.7          Version 1.7

          Version 2.6          Version 1.6

          Version 2.5          Version 1.5

          Version 2.4          Version 1.4

          Version 2.3          Version 1.3

          Version 2.2          Version 1.2

          Version 2.1          Version 1.1

          Version 2.0          Version 1.0


[ Actual release ]

Version: 4.2021b

Release date: May 12, 2021


New option:

Implemented a pure PHP based converter in order to index

.doc documents which were created by Microsoft Word 97.


New option in ‘Statistics’ menu:

Show collations for server, database and connection.


Improved PDF converter:

Find links in PDF documents during index procedure.

Not indexing PDF internal control characters any longer.


Improved index procedure for faster indexation on not activated link options.


Improved index procedure for option ' If available follow sitemap.xml '.

Now skipping all dis-activated document links (in admin backend) like:


Reactivated captcha protection in option ' User may suggest a URL to be indexed '.

Implemented with new algorithm to generate the captcha.


Bug fixed in option ' Block all queries sent by known spammer (IPs) '.


Bug fixed in option ' Phrase’ search '.


Some small bugs fixed.



Involved folders and files that have been modified / added for this release: