This eliminates the need for PHP to constantly load these pages on each request by the server. It significantly improves PHP performance, and your website by extension, by storing your site’s pre-compiled PHP pages in shared memory.

OpCache is an advanced caching module based on opcode that works similar to other caching solutions. This article was earlier written for APC (Alternative PHP Cache), but APC is deprecated and no longer working with PHP 5.4 onwards, now you should use OPcache for better and faster performance as explained in this article…

How to Install Zend OPcache in Debian and Ubuntu.

The creation of PDFs is also possible with “WPS Office Free”.

Functionally, the three modules offer a professional range of services: from the spell checker, thesaurus and mail merge function via formula editor, WordArt function, and target value search for tables to saving presentations as MPEG videos. The WPS office package supports and opens all documents saved in Microsoft file types such as DOC, DOCX, XLS, XLSX, PPT, and PPTX. Here we learn the commands or steps to install WPS Office on Debian 11 Bullseye. It is not open source like LibreOffice but readily available for Linux systems. The free office suite “WPS Office Free” which was earlier known as Kingsoft Office Free is one of the best free alternatives available for Microsoft Word, Excel, and PowerPoint.

Install WPS Office on Debian 11 Bullseye or 10 Buster Linux.

Wps office ubuntu