Kamil Grzegorczyk - KamilGrzegorczyk.com

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Kamil Grzegorczyk

WordPress - how to disable plugins on certain environment

WordPress - how to disable plugins on certain environment

Ever wondered how to disable WordPress plugins based on your environment? If yes - read this article.

Best practices - naming convention for WordPress custom fields

Best practices - naming convention for WordPress custom fields

You do not know how to name your custom fields? Are you noticing weird issues with your data? The solution might be easier than you think.

Building Admin Columns Pro filters for ACF repeater fields

Today's post is about how to filter your WordPress admin view based on ACF repater field value by building a plugin which extends Admin Columns Pro. Too much names? Let's head into the topic! > Update 8th of Nov 2017 to handle WP Core update to 4.8.3 Thanks Kokers

How to retrieve location specific fields from Facebook Graph API

Recently I stumbled upon the small issue regarding the object returned by Facebook Graph API. Our app was relatively simple allowing us to get user age and location in order to determine whether user was allowed to see the site content or not. We used PHP SDK for that purpose

Getting data from Advanced Custom Fields multi-value field

Getting data from Advanced Custom Fields multi-value field

Advanced Custom Fields [https://www.advancedcustomfields.com/] is a great plugin for handling custom fields and field groups in WordPress. It uses wp_postmeta table to store the data as key in one column and value in second. This is not perfect but guarantees that the data is perfectly aligned

Code inspection for zero width non-printable chars

Warning: This post covers scenarios when non-printable characters are entered by you during development process. Sanitization of user or 3rd party API input is a completely different topic. Welcome to the world of non-printable UTF-8 characters. They are easy to miss in the editor and can cause various issues in

Flushing DNS in MacOS Sierra

If you would need to flush DNS cache in newest OSX from Cuppertino you can use same command as before: sudo killall -HUP mDNSResponder But what if your DNS is resolving properly but in you browser you see wrong results? As it occurs browser may keep its own DNS cache

Lets start! Ghost, here we come!

Well... this is not how I have envisioned it before but... You know that ideas are nothing because execution is the king? And yes - unfortunately having perfectionist character and plenty of ideas ended up in me setting up my blog for 18 months. Without any visible progress. Same thing