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How to make PDF file downloadable in HTML link?

... header("Content-Length: " . filesize($file)); flush(); // this doesn't really matter. $fp = fopen($file, "r"); while (!feof($fp)) { echo fread($fp, 65536); flush(); // this is essential for large downloads } fclose($fp); PS: and obviously run some sanity checks on the "file" variable t...
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How to get position of a certain element in strings vector, to use it as an index in ints vector?

...e use size_t we must be careful not to subtract a larger iterator from a smaller iterator. – dasblinkenlight Oct 17 '17 at 10:49 ...
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Selenium wait until document is ready

...etely? I want something generic, I know I can configure WebDriverWait and call something like 'find' to make it wait but I don't go that far. I just need to test that the page loads successfully and move on to next page to test. ...
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Serializing class instance to JSON

...ps() only knows how to serialize a limited set of object types by default, all built-in types. List here: https://docs.python.org/3.3/library/json.html#encoders-and-decoders One good solution would be to make your class inherit from JSONEncoder and then implement the JSONEncoder.default() function...
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Real world use cases of bitwise operators [closed]

...checksums, parity, stop bits, flow control algorithms, and so on, which usually depend on the logic values of individual bytes as opposed to numeric values, since the medium may only be capable of transmitting one bit at a time. Compression, Encryption Both of these are heavily dependent on bitwise ...
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'id' is a bad variable name in Python

... keyword or built-in function in any language is a bad idea, even if it is allowed. share | improve this answer | follow | ...
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How to create fixed space and flexible space bar button items programmatically?

I want to create UIBarButtonItems programmatically and place these fixed space items between buttons. 7 Answers ...
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serve current directory from command line

...also running on a Mac. Tried it with Ruby 1.8.7, 1.9.3 and 2.0.0, and they all work. Weird. – Daniel Perez Alvarez Sep 9 '13 at 9:04 7 ...
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How do I change the string representation of a Python class? [duplicate]

... functions. Json dumps treats the object as a dictionary, and will convert all keys to strs. – mchicago Mar 7 '14 at 12:14 add a comment  |  ...
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File Upload without Form

... using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'. ...