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The character encoding of the HTML document was not declared

...ur HTML tags and doctype go away. You need to include those in your insert.php file: <!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" ...
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What is the maximum depth of the java call stack?

... It depends on the amount of virtual memory allocated to the stack. http://www.odi.ch/weblog/posting.php?posting=411 You can tune this with the -Xss VM parameter or with the Thread(ThreadGroup, Runnable, String, long) constructor. ...
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Returning first x items from array

... 6); array_splice($input, 5); // $input is now array(1, 2, 3, 4, 5) From PHP manual: array array_splice ( array &$input , int $offset [, int $length = 0 [, mixed $replacement]]) If length is omitted, removes everything from offset to the end of the array. If length is specified and is posit...
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PHP's array_map including keys

... Here's my very simple, PHP 5.5-compatible solution: function array_map_assoc(callable $f, array $a) { return array_column(array_map($f, array_keys($a), $a), 1, 0); } The callable you supply should itself return an array with two values, i.e. r...
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Unexpected results when working with very big integers on interpreted languages

...et the sum of 1 + 2 + ... + 1000000000 , but I'm getting funny results in PHP and Node.js . 36 Answers ...
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Most efficient way to concatenate strings?

...e expected semantics of a 'string join' operation). Next, given the total allocation size of the final string, the biggest boost in performance is gained by building the result string in-place. Doing this requires the (perhaps controversial) technique of temporarily suspending the immutability of a...
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Asynchronously wait for Task to complete with timeout

...at runtime. int timeout = 1000; var task = SomeOperationAsync(cancellationToken); if (await Task.WhenAny(task, Task.Delay(timeout, cancellationToken)) == task) { // Task completed within timeout. // Consider that the task may have faulted or been canceled. // We re-await the task so tha...
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Sending multipart/formdata with jQuery.ajax

I've got a problem sending a file to a serverside PHP-script using jQuery's ajax-function. It's possible to get the File-List with $('#fileinput').attr('files') but how is it possible to send this Data to the server? The resulting array ( $_POST ) on the serverside php-script is 0 ( NULL ) when us...
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Never seen before C++ for loop

... @Izkata: It isn't EVER an operator, it's parsed as a -- token followed by a > token. Two separate operators. A "down to zero" loop is just a straightforward combination of post-decrement and greater-than. C++ operator overloading doesn't create new operators, it just repurpo...
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Removing trailing newline character from fgets() input

... helpful answer. Can we use strlen(buffer) when buffer size is dynamically allocated using malloc ? – rrz0 Nov 10 '18 at 10:16 ...