Vertical alignment is difficult to find a solution. But I will tell you a simple way to align a div vertically center. The CSS property you’re going to use for this purpose is vertical-align.
Here is the code of a div aligned vertically.

#adiv{
display:inline-block;
vertical-align:middle;
}

This only works for div with the display property inline-block and some others which I don’t know. But it’s better to use inline-block.

To check whether a request has been made is from Ajax or not you can use $_SERVER[‘HTTP_X_REQUESTED_WITH’]. See the following example:

if(strtolower($_SERVER[‘HTTP_X_REQUESTED_WITH’])==’xmlhttprequest’){
 echo "The request is from an Ajax Call";
}else{
 echo "The request is not from an Ajax Call";
}
?>

There you go. You now know how to check whether request made to file is from an Ajax Call or not in PHP.

From my experience with Adsense I got disapproved after a visit from a URL to my blog. The URL was SPAM which is known as REFERRAL SPAM. See more about REFERRAL SPAM here.

Why Adsense account got disapproved of Referral SPAM ?

If you want to add GET parameters or POST parameters to files loading using include function in PHP then you should know the following:

It’s not possible. But it is in a different way.

If you are adding GET parameters to file name like the following, then it won’t work:

The above code won’t load the file, because PHP Include function only looks for files, it won’t send any parameters. It will search for file.php?user=subin in the directory for the case above. You can make it work in a different way.

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SSH is the easiest way to access a remote computer not in graphical interface but in character interface.

ssh [email protected]

ssh [email protected]

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While running a fullscreen app in Wine such as games, you might not get the screen resolution back after you close the app. It’s because Linux won’t automatically change it’s resolution like Windows.

But you could if you run a simple file in terminal. Here is how you could do it.
Create a file named normal.sh in your Desktop with the following contents:

#!/bin/bash
xrandr -s 0

Save it on a place where you can open it easily. Make the file Executable to run it in a terminal. See this post to see how you could make a file executable.

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Executable files are files that can be used to run a program or to do a specific purpose specified in the file. Normally not all files defaultly would be executable in Linux because of security reasons. If all files are defaultly executable then the scripts can do whatever the hell they want to do in your computer. As we call them VIRUSES. This is one of the main reasons why you should use Linux. It’s virus free.

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The black sidebar on the right side of the blog is hidden and is only visible when mouse is over it. This is a problem because most of the users who are visiting your blog won’t even see the sidebar. The following list shows the advantages of having a sidebar not fading out :

1. Google + Followers Increases
2. More people will subscribe to your blog
3. People will know the popularity of your blog when they see the blog stats
4. and others…….

So I’m gonna tell you how to prevent the sidebar from fading out to the right side.
First of all Go to Blogger -> Template -> Customise
Choose Advanced option and click on the Add CSS button from the sub options. Paste the following code in the white box:

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