Blog

From my workshop

Case studies and guides from real projects.

Typical DevTools view: 302 redirect with errorMessage in URL and - most misleading - empty allFields parameter. A signal that the problem isn't in the form.
2026-07-31 programming, web development

Marketing automation Form Handler returns “field required” but everything is filled – debug checklist

When data sends but the marketing automation system “doesn’t see it” Situation from one project: WordPress form sends 13 fields to a marketing automation endpoint. All have values. All have names…

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Helper function get_hide_from_listings_meta_query in PHP - returns meta_query with OR relation and NOT EXISTS conditions
2026-07-29 programming, web development

Hide a WordPress post from listings but keep the URL – custom post type as “private”

Private events you can’t advertise Client calls: “We’re running a closed event for selected clients. Invitations go by email. But the event page needs to be accessible so people can sign up. Only…

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2026-07-23 programming

ACF Blocks – “Cannot redeclare” fatal error when saving in Gutenberg

Symptom – 500 error when saving in Gutenberg You’re writing an ACF block, you add a helper function – everything runs smoothly on the frontend. You go to the Gutenberg editor, click…

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PHP script for bulk WordPress content update open in VS Code next to wp_posts table view in phpMyAdmin
2026-07-21 programming, web development

Bulk WordPress content update via PHP script – with exception whitelist

When WordPress admin stops being enough Client sends: “Hey, we’re updating the text under the contact form on all pages – except the training ones, keep those as they were”.…

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web development
2026-02-02 web development

Which WordPress theme to choose? A developer’s perspective

„Which theme do you recommend?” It is one of the questions I hear most often. And honestly? There is no single answer. At MultiTask Creations I work across a wide spectrum of IT –…

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PageSpeed Anatomy
2026-01-19 web development

From 74 to 92 on Mobile. How I Sped Up Elementor Without Paid Plugins (Case Study + PDF Checklist)

“The site works, the score is green on desktop, and on mobile, it’s 74. It’s fine, clients aren’t complaining.” Sound familiar? For many website owners, a score of 74/100 on mobile…

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Wynik końcowy - Desktop 99/100
2026-01-12 web development

How I improved mobile PageSpeed from 67 to 84 – WordPress optimization step by step

Know the feeling? You build sites for clients, polishing every detail, and then you look at your own site and… well. „I’ll fix it later”, „It kind of works”, „No…

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Digital twin
2025-08-25 programming, web development

Your private sandbox: how to clone a WordPress site to your computer

Know that fear? You have to make an important change on a client’s live site. One small mistake, one badly updated plugin – and the whole site, watched by hundreds of users, can…

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Let's started with Netlify
2025-07-14 programming, web development

Your React App Online in 15 Minutes? A Practical Guide to Deploying on Netlify

You are sitting at your screen, smiling. Your new React app runs perfectly, every component in place, the logic humming along… on your computer. And then the question appears: „What…

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Child theme and parent theme
2025-06-30 programming, web development

Your Changes Disappear After an Update? Discover the Secret of WordPress Child Themes

There is a moment of dread that almost every WordPress site owner knows. A theme update notification appears – you know you should install it for security reasons, but a cold sweat sets…

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Got a project to talk about?

Just tell me what you need - it does not have to be technical, that is my job. I will get back to you and tell you straight whether and how I can help.