Author / Giovambattista Fazioli

MySQL provides a very simple method to select rows in random order. It uses the ORDER BY RAND()statement. If you will be used theORDER BY RAND() statement, MySQL will create a temporary table with all results, then will be assigned a random index to each row and finally will return the random rows! This makes the […]

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When you would like to show a page only for a specified user or you wish to create a maintenance page, you may use this simple script:

 

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With Xcode 4 you can develop applications for iPad and iPhone. Also, you can choose a different iOS target. Currently, the last release of iOS is 4.3 and when you will create a new project you will see:

Now, the rootViewController property has been added with iOS 4. This mean that when we going to […]

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The last version of WordPress provides a new toolbar in frontend view when you are logged in. To disable this feature you can add the following code in the functions.php file in your active theme:

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Apple suggests to use an instance of NSFileManager class and avoid the static class method defaultManagerbecause it will return a singleton instance: no thread safe: In Mac OS X v.10.5 and later you should consider using [[NSFileManager alloc] init] rather than the singleton method defaultManager. Using [[NSFileManager alloc] init] instead, the resulting NSFileManager instance is […]

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If you  would like to avoid to set the background image of main view controller through Interface Builder, you can use a different way and delete the UIImageview object from Interface Builder:

You may use viewDidLoad as well but viewWillAppear avoid some flickering. With Xcode 3.2.5 is not possible to use the pattern yet.

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How to check if an element DOM exists Be careful when you wish if an element DOM exists. If you use:

This method doesn’t work because jQuery will return an [Object object] even if the element doesn’t exist. We may use a couple of methods to be sure that an element exists:

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You remember the post How to get a page/post content, don’t you? Then, we may get the page/post content by:

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We have to use a little trick! In other words, we will remove the meta box and then we will add a new one again:

 

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How to merge one or more images

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