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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?

...you either go with that or you check the host name against a white list: $allowed_hosts = array('foo.example.com', 'bar.example.com'); if (!isset($_SERVER['HTTP_HOST']) || !in_array($_SERVER['HTTP_HOST'], $allowed_hosts)) { header($_SERVER['SERVER_PROTOCOL'].' 400 Bad Request'); exit; } ...
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Why does 'continue' behave like 'break' in a Foreach-Object?

...each that helps to make this conversion easy and make mistakes easy, too). All continues should be replaced with return. P.S.: Unfortunately, it is not that easy to simulate break in ForEach-Object. share | ...
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Accessing a Shared File (UNC) From a Remote, Non-Trusted Domain With Credentials

... The way to solve your problem is to use a Win32 API called WNetUseConnection. Use this function to connect to a UNC path with authentication, NOT to map a drive. This will allow you to connect to a remote machine, even if it is not on the same domain, and even if it has a diff...
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Installing older version of R package

... To install an older version of a package from source (within R): packageurl <- "http://cran.r-project.org/src/contrib/Archive/ggplot2/ggplot2_0.9.1.tar.gz" install.packages(packageurl, repos=NULL, type="source") If this doesn'...
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How to delete all Annotations on a MKMapView

Is there a simple way to delete all the annotations on a map without iterating through all the displayed annotations in Objective-c? ...
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How can I get a user's media from Instagram without authenticating as a user?

...1/users/<user-id>/media/recent/ (at present time of writing) you actually do not need OAuth access token. You can perform https://api.instagram.com/v1/users/[USER ID]/media/recent/?client_id=[CLIENT ID] [CLIENT ID] would be valid client id registered in app through manage clients (not relate...
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Get Image size WITHOUT loading image into memory

... As the comments allude, PIL does not load the image into memory when calling .open. Looking at the docs of PIL 1.1.7, the docstring for .open says: def open(fp, mode="r"): "Open an image file, without loading the raster data" There ar...
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What is the difference between String.Empty and “” (empty string)?

...ich makes string.Empty more efficient. In version 2.0 and later of .NET, all occurrences of "" refer to the same string literal, which means "" is equivalent to .Empty, but still not as fast as .Length == 0. .Length == 0 is the fastest option, but .Empty makes for slightly cleaner code. See the ...
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Navigation bar appear over the views with new iOS7 SDK

...o! The space your navigation bar takes up should be accounted for automatically if ([self respondsToSelector:@selector(edgesForExtendedLayout)]) self.edgesForExtendedLayout = UIRectEdgeNone; You need add the above in your -(void)viewDidLoad method. Note: You should be using the latest GM...
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Iterating over Java collections in Scala

... As of Scala 2.8, all you have to do is to import the JavaConversions object, which already declares the appropriate conversions. import scala.collection.JavaConversions._ This won't work in previous versions though. ...