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Most lightweight way to create a random string and a random hexadecimal number

... Is this random/unique enough to be used in, say, session tokens? – moraes Jul 4 '11 at 12:31 1 ...
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How can i take an UIImage and give it a black border?

...mport <QuartzCore/CALayer.h> UIImageView *imageView = [UIImageView alloc]init]; imageView.layer.masksToBounds = YES; imageView.layer.borderColor = [UIColor blackColor].CGColor; imageView.layer.borderWidth = 1; This code can be used for adding UIImageView view border. ...
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Asynchronous shell exec in PHP

I've got a PHP script that needs to invoke a shell script but doesn't care at all about the output. The shell script makes a number of SOAP calls and is slow to complete, so I don't want to slow down the PHP request while it waits for a reply. In fact, the PHP request should be able to exit without ...
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What is cURL in PHP?

In PHP, I see the word cURL in many PHP projects. What is it? How does it work? 11 Answers ...
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How to use sed/grep to extract text between two words?

...ement a lazy quantifier you would just match against everything except the token you didn't want to match, but in this case, there isn't just a single token, instead its a whole string, String. – wheeler Jun 26 '18 at 21:30 ...
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Find the last element of an array while using a foreach loop in PHP

...t being said, you don't -have- to iterate over an "array" using foreach in php. share | improve this answer | follow | ...
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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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How do I expire a PHP session after 30 minutes?

...y registered session. And that is cost-intensive. Furthermore, when using PHP's default session.save_handler files, the session data is stored in files in a path specified in session.save_path. With that session handler, the age of the session data is calculated on the file's last modification date...
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In Visual Studio C++, what are the memory allocation representations?

...g/wiki/Magic_number_(programming) * 0xABABABAB : Used by Microsoft's HeapAlloc() to mark "no man's land" guard bytes after allocated heap memory * 0xABADCAFE : A startup to this value to initialize all free memory to catch errant pointers * 0xBAADF00D : Used by Microsoft's LocalAlloc(LMEM_FIXED) t...
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Using $_POST to get select option value from HTML

... Where do I put the $selectOption = $_POST['taskOption']; I put it in the php but it does nothing.... – Yunfei Chen 2 days ago add a comment  |  ...