PHP. Yii. JavaScript. Programming. Software design. Patterns. UML. My experience.
When designing some architecture, you face with the problem “which object should perform X task?” We discussed this question in my previous post in this series. There we noted, that object should perform the tasks he has enough info for. He should be an “expert”. But because one of the main OOP characteristics is interaction between objects, it’s often hard to answer this question.
Continue reading ‘Low Coupling and High Cohesion - GRASP (Design patterns series)’ »
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’ »
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()’ »
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():
Once I had a task to import a number of data from datafeeds (that are in CSV or XML) into MySQL database. See solution in my another post. Here I want to tell about handling large files.
Datafeeds there are 50-200M each, so reading all file at once was not possible due to memory limitations. So we need to split it into portions. Here is the class, that solves the problem of downloading remote file, saving it locally and then reading by portions. Continue reading ‘Working with large files eficiently’ »
