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how do i remove a comma off the end of a string?

...{ $string = substr($string, 0, -1); } If you want to remove all commas from the end of a line use the simpler: $string = rtrim($string, ','); The rtrim function (and corresponding ltrim for left trim) is very useful as you can specify a range of characters to remove, i.e. to remove commas and...
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Difference between HTTP redirect codes

...y. Any PUT requests are processed. The resulting document can be retrieved from the redirect url. Future request should still go to the original url. share | improve this answer | ...
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overlay two images in android to set an imageview

... First, the canvas is drawn and the images are drawn on top of each other from point (0,0) On button click public void buttonMerge(View view) { Bitmap bigImage = BitmapFactory.decodeResource(getResources(), R.drawable.img1); Bitmap smallImage = BitmapFactory.decodeResource(getRes...
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Haskell, Lisp, and verbosity [closed]

... From Conor McBride, quoted by Don Stewart: 'I like to think of types as warping our gravity, so that the direction we need to travel [to write correct programs] becomes "downhill".' The type system makes it surprisingly easy...
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Understanding the basics of Git and GitHub [closed]

.... You did some debugging. Before you commit you always look at the changes from the last commit. You see your debug print statement that you forgot to delete. Make sure you check gitimmersion.com. share | ...
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React.js: Wrapping one component into another

...it easy to pass the props down do children component (in this case Hello). From React 0.14.* onwards the only way to pass props to children components would be to use React.createClone, which might be expensive. – Mukesh Soni Sep 10 '15 at 18:47 ...
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Regular Expressions and negating a whole character group [duplicate]

... A small note. The . from the "any single character" is only for the same line. If you need to do this to multi-line regex, you may need to replace it to (.|\n) – Thiago Mata Feb 26 at 2:36 ...
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Erlang's 99.9999999% (nine nines) reliability

... in one part of a system can have on other parts. Clustering. This follows from the previous point: Erlang's message passing mechanism works transparently between machines on a network, so a sending process doesn't even have to care that the receiver is on a separate machine. This provides an easy m...
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Convert string to variable name in python [duplicate]

...ilar, but not the same question here Creating dynamically named variables from user input share | improve this answer | follow | ...
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How to check if a service is running on Android?

... I use the following from inside an activity: private boolean isMyServiceRunning(Class<?> serviceClass) { ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); for (RunningServiceInfo service : man...