Krzych Jończyk

Modern PHP, soft skills, productivity and time management.

Category: Tech (Page 2 of 4)

Keep your logs short with logrotate

April 27, 2017 / / 0 Comments

tl;dr

If you are developing some application that writes a lot of logs use `logrotate` to keep them short and don’t allow them to reach gigabytes.

I’m developing in Symfony framework on daily basis. And on the development environment, it creates lots of logs. Every request is logged, every command is logged, every event subscriber is logged. And if you’re using some older version deprecations are also logged. On my computer, every refresh in browser creates over 1 MB of logs! My friend gets almost 10 MB…
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First attempt to Selenium and PHPUnit

February 18, 2017 / / 0 Comments

This is a simple tutorial how to set up Selenium test with PHPUnit and phantomjs for easy and fast testing.

Today I wanted to learn something about Selenium. It’s very popular testing tool for any application that can be launched using a web browser, regardless of programming language or technology. I don’t know it very much, in fact, I know only how to set it up and write the simplest test 😉 But I want to share my today’s experiences because I cannot find any simple tutorial and had to glue together scripts, setting and libraries from all across the internet 😉

If you don’t like reading tutorials and want rather dig into example code I created the repository on GitHub where you can find everything I talk about here.
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Squash – simple way to cleaner git repository

February 16, 2017 / / 0 Comments

I use git for about 3 years. First I knew only how to use it with PhpStorm – `cmd + t` to update branch, `cmd + k` to commit and push changes. To make new branch I used menu and let the IDE do the work. It was fine until I heard about `squash`. I heard that it is often used when you contribute to someone’s repository. Maintainer of the repo often want clean history – if you want to contribute you must make pull requests with only one commit. And you may do it using squash.

It was a bit too much for me at that time: `squash`, `rebase`, `push –force`. No thanks 😉

Some time later a couple of people in my company started to use git more. They started to make squashes, rebases and so on. So if they wanted to use it I had to learn it too.
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A few words about Git hooks

January 26, 2017 / / 0 Comments

Lets talk about Git hooks. You’re using Git, right? No? But… you have to! Seriously, go to git-scm, GitHub or whatever and check it out.

In Git you have 3 types of files: tracked, ignored and untracked.
Tracked ones are simple – they’re just files you’ve added to the repository. This might be your application’s code. Ignored ones are also simple – if you don’t want to have any file you can add it to `.gitignore` file and you will have it locally but not in the repository. This might be any vendors you can easily install and don’t need to store them in your repository.

But untracked files are a little bit more complicated. These are files you’ve just created and didn’t specify what to do with them. Are those useful and should be added, or are they just temporary files or vendors? They might be also autogenerated files and this post is really about them.
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How to start developing in Symfony with only PHP installed?

November 20, 2016 / / 2 Comments

This blog post will contain useful information for those, who want to start developing in Symfony without setting up a server (like apache or nginx) or installing docker.

PHP from version 5.4 has built in server. You can run it by executing in console php -S 127.0.0.1:8000 in your projects directory. When you go to this address (of course you can change the port and 127.0.0.1 to localhost) you’ll see the main page of your project.

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PHPyths Buster: A great string performance test! (updated)

October 23, 2016 / / 7 Comments

I was challenged in my last post to deeper check performance of strings. I think it will be quite interesting to test out some cases and say which way of using strings is the best.

In this post, I will check several string usages in PHP 5.6 and PHP 7.

To simplify testing I created a simple function which gets 2 arguments: an array of callable functions to compare (as many as you want) with names to display in summary, and a number of loops to test the function…
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PHPyths Buster: Single quotes are faster than double quotes

October 8, 2016 / / 4 Comments

As you may know, in PHP you can use single and double quotes for strings. These two lines are equal:

<?php
$str1 = "some string";
$str2 = 'some string';

// $str1 === $str2 returns true

The only difference here is handling variables placed inside quotes. Let’s look at this simple example:

<?php
$name = "John";
$str1 = "Hello there $name";
$str2 = 'Hello there $name';

echo $str1; // gives Hello there John
echo $str2; // gives Hello there $name

As you can see in double quotes variables are processed and in single quotes they aren’t.
But which one should I use?
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PHPyths Buster: The power of simple CLI modes

September 27, 2016 / / 0 Comments

If you know Python you know, that it has an interactive shell. The same as javascript, perhaps ruby and many many other languages. But did you know, that PHP has it also?

php -a

`php -a` command opens interactive shell in which you can write some simple samples of code and quickly validate some of your ideas. It works like Python shell and you can write in it simple statements, functions and so on.
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PHPyths Buster: Annotations

September 20, 2016 / / 0 Comments

I was working on a project in C# and ASP.NET MVC once. It was a long time ago. I can remember how happy I was. Earlier I was creating a project in PHP in the worst way: on an own framework. It was all old, shitty PHP. With big routing arrays, custom validation services, and ancient template engine, Smarty2.

When I started to create a project in ASP.NET I was astonished how many great features it has. One of them were annotations.
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