Archive for the ‘PHP’ Category
In my recent project there are quite many tasks that run in the background – generate thumbnails, detect colours on the pictures, run DB updates etc. Sure, all that is handled using cron and Yii commands. However there is a little problem. Consider we have DB update routine that should import new stock data from the datafeed. Datafeed is uploaded hourly, but upload can’t be scheduled to minutes – connection speed, different errors may interrupt the upload. On the other hand, sometimes processing takes 5 mins and sometimes – a few hours because in the first variant we just replace records and in the latter – download images for the new products.
Continue reading ‘Concurrent process management in Yii’ »
Posted by Konstantin Mirin on March 25, 2010 at 09:31 under PHP, Programming, Yii.
Tags: experiece, extension, tip, trick, Yii
4 Comments.
I’ve graduated in March 2010 and I don’t need to visit university any more. However, I enjoyed studying there and I know what challenges my fellow students-programmers have. That’s why I continue the job started this autumn – computer club, we call it “Geeks’ Club”. Sure, we’re not true geeks there, but we tend to be 
So I’m helping students who’re interested in web-technologies and in object-oriented programming. I explain them things that are not covered in the standard university course. Things, that are more practical and they can be paid money for.
Continue reading ‘Requirements and Use Cases. SMS Notification System.’ »
Posted by Konstantin Mirin on March 18, 2010 at 08:00 under OOP, PHP, Programming.
Tags: DB, experiece, modelling, OOP, PHP, sms-notify, UML
3 Comments.
Websites, that aggregate something become more and more popular because we need all information available in one place and accessed fast and easily. From time to time, you come across with tasks, that require retrieving some data from the password-protected area. For example, I use Guru.com for my job search. They post lots of the projects there, but they don’t offer convenient listing and filtering. So I developed my own tool, that grabs everything from there and ranks it all in the way I need. So, we’ll take a look at different types of password-protected areas and see how to deal with any of them
Continue reading ‘Grabbing password-protected content with cURL’ »
Posted by Konstantin Mirin on May 24, 2009 at 09:00 under PHP, Programming.
Tags: experiece, PHP, tip, trick, tutorial
15 Comments.
Personal productivity depends on the tools greatly, so I pay much attention to the programs I use. My previous post in this field was about MySQL workbench which I consider the best free DB design tool for MySQL.
When I started coding PHP, I used Linux so I used Kate, which only had syntax highlighting and allowed to save multiple files opened as a project Next was Quanta, the Linux IDE for PHP. I spent lots of time developing there until I installed trial version of Zend Development Environment (ZDE) 5.5. That was really cool. I liked it very much and used for quite long time. Around half a year ago I heard about NetBeans and decided to try it out. I was thinking quite long about it, I didn’t have enough time to install and go through all it’s functions. Finally I saw that I will never have this time, so I started using it around 1.5 months ago. While using, I was putting down some notes about the things I liked and the ones I didn’t. So now I just want to present my list
Continue reading ‘NetBeans 6.5 for PHP – My Experience’ »
Posted by Konstantin Mirin on May 22, 2009 at 09:00 under PHP, Programming.
Tags: choice, experiece, feedback
29 Comments.
I bet you didn’t know, that switch can be used to answer the question: “Which of the N following statements is true?” Continue reading ‘Trick with php switch()’ »
Posted by Konstantin Mirin on March 6, 2009 at 12:41 under PHP.
Tags: PHP, tip, trick
3 Comments.
As you know, PHP can return only one value from the function. However, there is a simple workaround – we return an indexed array from function and immediately split it into variables using list():
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function ret()
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{
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//something useful here
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return array($varA,
$varB);
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}
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list($a,
$b) = ret
();
//we’ll have $varA in $a and $varB in $b after this
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Posted by Konstantin Mirin on March 6, 2009 at 09:38 under PHP, Programming.
Tags: PHP, tip, trick
Comment on this post.
Yesterday I’ve read a post on The Developer’s Day blog. Then tested this thing in Yii. There is a jQuery in my application, so I created test controller and test action, that only outputted “Hello, world” and called it from the firebug console Continue reading ‘Speeding up Yii or why should you use DB sessions’ »
Posted by Konstantin Mirin on March 5, 2009 at 06:02 under Databases, PHP, Yii.
Tags: DB, production, session, tip, trick, Yii
18 Comments.
OOP stands for Object-Oriented Programming. What does it mean? And what’s the difference between OOP and procedural programming? We’ll go through all these terms, We’ll demonstrate the difference of these approaches and advantages of the OOP over procedural concept. Examples are for PHP, but concept is the same in all object-oriented languages.
So, let’s start with defining, what OOP is and how it differs from procedural programming. Just take a look around. For example, you see a table. Consider you have to program it. When using procedural approach, you focus on it’s behaviour (for example, you write function, that calculates height or that assembles it from the given dimensions). However, table has properties besides behaviour. When following procedural paradigm, we create variables for each property – height, width, length, square, weight. All that data – properties (variables) and behaviour (functions) describe the object from the real world – table. What’s wrong with this approach? Nothing wrong, everything is fine, when we’re dealing with one table.
Continue reading ‘What is OOP (Object-oriented programming)?’ »
Posted by Konstantin Mirin on February 28, 2009 at 16:27 under OOP, PHP, Programming.
Tags: basics, concept, encapsulation, inheritance, OOP, polymorphism, tutorial, UML
40 Comments.
Long journey to the framework…
I’m developing web-applications since 2004, I am crazy about nice architecture and first-class CSS+JS frontend. On the server side, I was using my framework, quite basic one. And all my projects were based on it.
In the October 2008 I finished one of my projects using my own framework. Then looked at it critically, then saw description of the Zend Framework (it had so many features, that mine didn’t!), and decided to move from my own development to the better product.
Continue reading ‘Yii – the framework of my choice’ »
Posted by Konstantin Mirin on February 24, 2009 at 08:08 under Frameworks, PHP, Yii.
Tags: choice, framework, Yii
11 Comments.
Recently I’ve learned one nice trick with for loop. When you use it, you should know he number of itereations. Most people do it like this:
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$s =
sizeof($a);
//you may use count(), but sizeof if 5% faster
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for ($i = 0; $i < $s; $i++)
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{
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//do something clever here
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‘;
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}
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But this requires counting number of elements before using a loop. Continue reading ‘Nice trick with FOR loop’ »
Posted by Konstantin Mirin on February 20, 2009 at 09:28 under JavaScript, PHP, Programming.
Tags: FOR loop, programming technique, tip, trick
7 Comments.
