All Questions

4
answers

What are the method, function, and procedure definitions?

I've always thought the definitions were these, but it seems like I'm wrong: Functions: Every procedure that returns something Methods: Any procedure that returns nothing I wonder if these settings are correct, and if t...
asked on 04.04.2014 / 21:41
3
answers

Search the data for the last 7 days from the current date

I am making a query to DB, and I want to receive results for the last 7 days from the current date. For this, I have a data field of type DATA (yyyy-mm-dd) in the table. I'm doing the query in php, mysql turn. $query = mysql_query(SELEC...
asked on 14.03.2014 / 12:59
2
answers

What is the purpose of the free () function?

In which cases should it be used? Is there an alternative? Is it recommended to use?
asked on 12.12.2014 / 12:18
4
answers

How does grid system work?

I'm using Bootstrap in a project, but so far I do not understand how the structure works. It uses grids but the documentation is not clear about how it works and how to use it. I want to put together a layout that is responsive but at the...
asked on 11.03.2014 / 17:38
4
answers

Validate first and last name with regular expression

I need to create a regular expression that validates whether the format of the user's first and last name is valid, for example: Maria Silva | true Maria Silva | false Maria silva | false maria Silva | false MariaSilva | false In other wo...
asked on 03.10.2017 / 20:20
3
answers

What is devops?

I'd like to know what "devops" are in practice. I sincerely would like to know an experience rather than a formal definition.     
asked on 30.01.2017 / 17:02
2
answers

What is the difference between Javascript and jQuery?

I think of Jquery as a Framework Javascript in order to optimize writing, Ajax is a good example. In addition to facilitating writing, is there a difference between the two? What are the advantages and disadvantages...
asked on 26.04.2017 / 20:28
3
answers

What is the difference between the Statement and the PreparedStatement?

When I paid for the database chair, we only worked with the database, alone with no connection to an application that interacted externally with the DBMS. Only then was Java Database Connectivity (JDBC) introduced. But due to the rush of the cou...
asked on 21.11.2015 / 17:36
3
answers

Can I remove all the use I'm not using?

I took a project here ASP.NET C # and I realize I can pull several "using". Can I exit by removing these using or not? Does using that is not used in class can be used by someone who is using class ? No, right?...
asked on 12.01.2017 / 14:10
4
answers

What is the "spaceship operator" of PHP7?

I was checking out the New Features of PHP 7 and I came across an operator, which I had never seen in any programming language. The PHP Manual has demon- strated it from Spaceship Operator . I'll show you what I've seen below: echo...
asked on 16.09.2015 / 17:48