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Resize image in PHP

I'm wanting to write some PHP code which automatically resizes any image uploaded via a form to 147x147px, but I have no idea how to go about it (I'm a relative PHP novice). ...
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How to convert an enum type variable to a string?

... There really is no beautiful way of doing this. Just set up an array of strings indexed by the enum. If you do a lot of output, you can define an operator<< that takes an enum parameter and does the lookup for you. ...
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Create list of single item repeated N times

I want to create a series of lists, all of varying lengths. Each list will contain the same element e , repeated n times (where n = length of the list). ...
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Extract month and year from a zoo::yearmon object

... Ha thank you for this answer. It especially beats the other solutions when you want to do something like if(year(date1) > 2014){year(date1) <- year(date1) - 100} – Vincent Feb 10 '14 at 9:34 ...
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Which is more efficient, a for-each loop, or an iterator?

... If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater. If however, you mean by loop the old "c-style" loop: for(int i=0; i&l...
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What is the strict aliasing rule?

...n(void) { // Get a 32-bit buffer from the system uint32_t* buff = malloc(sizeof(Msg)); // Alias that buffer through message Msg* msg = (Msg*)(buff); // Send a bunch of messages for (int i = 0; i < 10; ++i) { msg->a = i; msg->b = i+1;...
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Convert Dictionary to semicolon separated string in c#

... Edited according to comments. – the_drow Oct 6 '10 at 11:18 7 @Amittai, @the_dr...
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iOS 7 TableView like in Settings App on iPad

...lor = UIColor.clearColor; CAShapeLayer *layer = [[CAShapeLayer alloc] init]; CGMutablePathRef pathRef = CGPathCreateMutable(); CGRect bounds = CGRectInset(cell.bounds, 10, 0); BOOL addLine = NO; if (indexPath.row == 0 && indexPath.r...
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“No such file or directory” error when executing a binary

I was installing a binary Linux application on Ubuntu 9.10 x86_64. The app shipped with an old version of gzip (1.2.4), that was compiled for a much older kernel: ...
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What is Scala's yield?

...I use yield instead of map? This map code is equivalent val res = args.map(_.toUpperCase) , right? – Geo Jun 27 '09 at 12:23 4 ...