Input validation in PHP forms and APIs | web apps Norway

Ruslan Bilohash

Este artigo está em inglês, norueguês, ucraniano e russo. Você está lendo a versão em inglês.

Price and stock never trust the POST body. That is checkout 101 and I keep it in Shop and Booking.

Reviews and mail

reCAPTCHA v2 on review APIs. Newsletter needs consent. Honeypot fields on public forms.

What you get

Hardening, validation, backups and cron on systems we install — defensive work only.
Input Validation wired into Shop, Booking or a custom PHP app — live demo first.
Install help on your domain in Norway, the EU or Ukraine.
Direct contact with the developer after launch — not a ticket mill.

I develop web applications with this stack for companies in Norway, Europe and Ukraine. One domain, one license, install help, then you run the product.

Norway, Europe, Ukraine

Norway

Input Validation for companies in Drammen, Oslo and the rest of Norway. English and Norwegian UI, Stripe, EU hosting.

Europe

Input Validation on a licensed domain for EU shops: hreflang, GDPR cookie banner, multilingual catalog.

Ukraine

Input Validation with Ukrainian/Russian storefronts, Nova Poshta where needed, Viber/Telegram alerts.

Live products that already use this

Shop CMS Booking CMS

How to order a web app with Input Validation

1

Tell me the product

Shop, booking, invoices, landing, or a custom PHP app. Mention Input Validation if you already know you need it.
2

I install on your domain

License, DNS, SSL, admin, Input Validation settings. You get a working site, not a slide deck.
3

You run it

I stay for onboarding and support. Direct contact with the developer in Drammen, Norway.

Questions

File uploads?

Extension allow-list, no PHP in uploads/. Same rule in security notes for Shop.

API keys in Git?

No. Settings and env. I treat leaks as incidents.

Related technologies

Security & Ops Vulnerability Hardening Secure Auth Automated Backups Cron Automation Logging

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Validate twice: browser for UX, server for truth