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Rohit Kumar

PreviewForm 2.0: Review Form Data Before Submit

August 1, 2026July 31, 2026 by Rohit Kumar

PreviewForm 2.0 adds an accessible review step before form submission. Install it from npm and use it with JavaScript or the jQuery adapter.

Categories Open Source Tags Field Notes, Forms, javascript, jQuery, npm, Open Source, TypeScript Leave a comment

Order WordPress Posts by the Current User ID

July 31, 2026 by Rohit Kumar

Prioritize the current user’s WordPress posts with a scoped WP_Query filter or a secure prepared SQL query using the post_author column.

Categories PHP & WordPress Tags php, snippet, user-id, wordpress Leave a comment

How I Built a Network-Wide Ad Blocker with Raspberry Pi, AdGuard Home, and a Locked Airtel Router

July 26, 2026 by Rohit Kumar

Airtel locked its DNS settings, so I used a Raspberry Pi 3B+, AdGuard Home, and an old Huawei router to filter my entire home network.

Categories Raspberry Pi Tags Field Notes Leave a comment

Cascading Dropdown Using Ajax, PHP, and MySQL

May 19, 2018 by Rohit Kumar

Dependent dropdown with Ajax and PHP is a common script, so I created one for developers. This post is about how to create dependent dropdowns with jQuery, MySQL, and PHP. In this tutorial we fetch data from database, convert it to XML format, and populate it into a dropdown with jQuery/JavaScript. The reason to convert … Read more

Categories PHP & WordPress Tags javascript, php Leave a comment

Cryptex x86 for Windows Vista and 7: A Legacy Security Project Revisited

December 16, 2016 by Rohit Kumar

Revisit the Cryptex x86 Windows Vista and 7 project, its three security modes, old limitations, and safer modern alternatives.

Categories Windows Tags cryptex, encryption, Field Notes, security, windows Leave a comment

HTML to Image PHP Script

February 3, 2013 by Rohit Kumar

Convert static or dynamic HTML to a JPEG image with PHP, HTML2PDF, and Imagick using a compact script, safe input, and sensible quality settings.

Categories PHP & WordPress Tags Field Notes, headless-php, html2image, html2pdf, imagick, pdf-to-image, php Leave a comment

Recover an Unsaved File After a Notepad++ Crash

December 31, 2012 by Rohit Kumar

Recover Notepad++ files after a crash from session backups, the backup folder, NppFTP cache, temporary files, or server-side copies.

Categories Developer Tools Tags crash, Field Notes, notepad++, recovery, windows Leave a comment

Mashable Slider Clone Free WordPress Plugin

December 11, 2012 by Rohit Kumar

Mashable Slider Clone is a free WordPress gallery plugin with albums, multiple image uploads, thumbnail cropping, sorting, ads, and TinyMCE support.

Categories Open Source Tags Field Notes, Gallery, Plugin, Slider, wordpress Leave a comment

Fix Joomla File Upload Issues on Plesk CentOS

December 6, 2012 by Rohit Kumar

Fix silent Joomla upload failures on Plesk CentOS by checking active PHP limits, temp paths, Joomla settings, and domain ownership safely.

Categories DevOps & Hosting Tags centos, Field Notes, file-upload, joomla, php, plesk Leave a comment

YouTube URL to Embed Code Generator — PHP Script

June 19, 2012 by Rohit Kumar

Recovered archive PHP script that converts YouTube and Vimeo URLs to embed iframe code, with custom dimensions, autoplay support, and thumbnail generation.

Categories PHP & WordPress Tags embed, php, youtube Leave a comment
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